View source for Four Thirds system

{{Short description|Digital camera design standard}}
{{Redirect|4/3|4:3 image aspect ratio|Aspect ratio (image)#4:3 standard|the related format|Micro Four Thirds system}}
{{Update|reason=needs to cover more accurately the fall-off in availability|date=September 2022}}

[[Image:Four Thirds system logo.png|thumb|right|Four Thirds logo]]

The '''Four Thirds System''' is a standard created by [[Olympus Corporation|Olympus]] and [[Eastman Kodak]] for [[digital single-lens reflex camera]] (DSLR) design and development.<ref name='DPReview.com 2001-02-13'>{{cite news | title=Kodak and Olympus join forces | date=2001-02-13 | publisher = DPReview.com | url =http://www.dpreview.com/news/0102/01021301kodakolympus.asp | work =DPReview.com | access-date = 2007-11-07 }}</ref> Four Thirds refers to both the size of the image sensor (4/3") as well as the aspect ratio (4:3). The [[Olympus E-1]] was the first Four Thirds DSLR, announced and released in 2003. In 2008, Olympus and Panasonic began publicizing the [[Micro Four Thirds system]], a [[mirrorless camera]] system which used the same sensor size; by eliminating the reflex mirror, the Micro Four Thirds cameras were significantly smaller than the Four Thirds cameras. The first Micro Four Thirds cameras were released in 2009 and the final Four Thirds cameras were released in 2010; by that time, approximately 15 Four Thirds camera models had been released by Olympus and [[Panasonic]] in total. 

The system provides a [[Standardization|standard]] that permits interoperability of [[digital camera]]s and [[Lenses for SLR and DSLR cameras|lenses]] made by different manufacturers. Proponents describe it as an [[open standard]], but companies may use it only under a [[non-disclosure agreement]].<ref>{{cite web | url = http://www.four-thirds.org/en/about/benefit.html | title = Benefits | access-date = 2008-12-10 | publisher = Four Thirds Consortium | quote = Details of the Four Thirds System standard are available to camera equipment manufacturers and industry organizations on an NDA basis. Full specifications cannot be provided to individuals or other educational/research entities. | archive-date = 2010-07-25 | archive-url = https://web.archive.org/web/20100725215141/http://www.four-thirds.org/en/about/benefit.html | url-status = dead }}</ref>

Unlike older single-lens reflex (SLR) systems, Four Thirds was designed from the start for digital cameras.  Many lenses are extensively computerised, to the point that Olympus offers [[firmware]] updates for many of them. Lens design has been tailored to the requirements of digital sensors, most notably through [[telecentric lens|telecentric]] designs. 

The [[image sensor format]], between those of larger SLRs using "full-frame" and APS-C sensors, and smaller [[Point-and-shoot camera|point-and-shoot]] compact digital cameras, yields intermediate levels of cost, performance, and convenience. The size of the sensor is smaller than most DSLRs and this implies that lenses, especially telephoto lenses, can be smaller. For example, a Four Thirds lens with a 300&nbsp;mm [[focal length]] would cover about the same angle of view as a 600&nbsp;mm focal length lens for the [[135 film|35 mm film]] standard, and is correspondingly more compact. Thus, the Four Thirds System has [[crop factor]] (aka focal length multiplier) of about 2, and while this enables longer focal length for greater magnification, it does not necessarily aid the manufacture of wide angle lenses.

==History==
Kodak and Olympus announced in February 2001 they would share digital camera technologies; Olympus committed to purchase high-resolution [[charge-coupled device]] (CCD) sensors which would be jointly developed by the two companies and manufactured by Kodak.<ref>{{cite news |url=https://www.dpreview.com/articles/1261925083/kodakolympus |title=Kodak and Olympus join forces |date=February 13, 2001 |work=DP Review |access-date=1 May 2024}}</ref> A few months later, an internal Kodak presentation revealed that Olympus was developing a DSLR using Kodak's KAF-C5100E 5.1 [[megapixel]] 4/3" sensor, with a tentative schedule to announce the camera at the 2002 [[Photo Marketing Association]] exposition;<ref>{{cite news |url=https://www.dpreview.com/articles/7433026645/newolykodakslr |title=Olympus to intro 5.1 mp SLR next year? |date=May 1, 2001 |work=DP Review |access-date=1 May 2024}}</ref> Olympus confirmed they were developing a "concept camera" with that sensor size.<ref>{{cite news |url=https://www.dpreview.com/articles/8994755993/olympususconcept |title=Olympus confirm 4/3" CCD concept camera |date=May 1, 2001 |work=DP Review |access-date=1 May 2024}}</ref>

The Four Thirds System was announced jointly by Olympus and Kodak at [[photokina]] in September 2002.<ref>{{cite news |url=https://www.dpreview.com/articles/6283898937/olydak43inch |title=Olympus and Kodak confirm 'Four Thirds system' |date=September 24, 2002 |work=DP Review |access-date=1 May 2024}}</ref> The first camera was the [[Olympus E-1]], announced on June 24, 2003, and aimed at the professional market, with shipments to commence in September.<ref>{{cite news |url=https://www.dpreview.com/articles/3942716090/olympuse1 |title=Olympus E-1 Digital SLR |date=June 24, 2003 |work=DP Review |access-date=1 May 2024}}</ref> In February 2004, Olympus announced that [[Panasonic]], [[Sanyo]], and [[Sigma Corporation]] had joined the consortium.<ref>{{cite news |url=https://www.dpreview.com/articles/9329309797/morejoinfourthirds |title=Panasonic, Sanyo, and Sigma join Four Thirds |date=February 13, 2004 |work=DP Review |access-date=1 May 2024}}</ref> The second Four Thirds DSLR, the [[Olympus E-300]], was introduced that year, without the typical protrusion on the top deck, as the designers had chosen to use a "porro finder" which had four mirrors instead of a standard [[pentaprism]], similar to the design of the viewfinder used in the [[Olympus Pen F]] half-frame film SLR.<ref>{{cite web |url=https://www.shutterbug.com/content/olympus%E2%80%99-e-300-evolt-bran-affordable-8-megapixel-digital-slr |title=Olympus' E-300 EVOLT: An Affordable 8-Megapixel Digital SLR |first=Peter K. |last=Burian |date=May 1, 2005 |work=Shutterbug |access-date=1 May 2024}}</ref>

In 2006, Olympus and Panasonic announced they had collaborated on the design of a new sensor, branded [[Live MOS]], using a body design similar to that of the E-300; the result was three similar cameras, sold as the [[Olympus E-330]], [[Panasonic DMC-L1]], and [[Leica Digilux 3]].<ref>{{cite news |url=https://www.dpreview.com/articles/7309658398/olympuspanas |title=Olympus and Panasonic announce Four Thirds system DSLR |date=February 26, 2006 |work=DP Review |access-date=1 May 2024}}</ref> Nearly all of the successive Four Thirds camera models would use sensors from Panasonic, with the sole exception of the [[Olympus E-400]] (2006), which was equipped with a CCD but sold only in Europe.<ref>{{cite web |url=https://www.wrotniak.net/photo/43/e400.html |title=The New Olympus E-400: An E-500 on a diet? |first=J. Andrzej |last=Wrotniak |date=September 15, 2006 |website=wrotniak.net |access-date=1 May 2024}}</ref>

=== Micro Four Thirds System ===
[[File:Olympus-MicroFT-Model.jpg|thumb|right|Concept Micro Four Thirds camera by Olympus]]
{{Main|Micro Four Thirds System}}

In August 2008, Olympus and Panasonic introduced a new format, [[Micro Four Thirds]].

The new system uses the same sensor, but removes the mirror box from the camera design. A [[live preview]] is shown on either the camera's main [[liquid-crystal display]] or via an [[electronic viewfinder]], as in digital compact cameras. Autofocus may be accomplished via a [[Autofocus#Passive|contrast detection]] process using the main imager, again similar to digital compact cameras. Some Olympus and Panasonic manufactured camera bodies also feature phase detection auto focus built into the sensor. The goal of the new system was to allow for even smaller cameras, competing directly with higher-end point-and-shoot compact digital cameras and DSLRs.  The smaller [[flange focal distance]] allows for more compact normal and wide angle lenses. It also facilitates the use, with an adapter, of lenses based on other mounting systems, including many manual focus lenses from the seventies and eighties.

In particular, Four Thirds lenses can be used on Micro Four Thirds bodies with an adapter; however, "all of the functions of the Micro Four Thirds System may not always be available."<ref name = "MicroFourThirdsBenefitsOfficial">[http://www.four-thirds.org/en/microft/index.html Micro Four Thirds Official] benefits list.</ref>

With the emphasis shifted to the Micro Four Thirds system, member companies began discontinuing manufacturing and support for Four Thirds system products. The final Four Thirds camera, the [[Olympus E-5]], was released in 2010.<ref>{{cite news |url=https://techcrunch.com/2010/09/14/olympus-releases-splashproof-e-5-dslr/ |title=Olympus Releases Weather-Proof E-5 DSLR |first=Devin |last=Coldewey |date=September 13, 2010 |work=TechCrunch |access-date=1 May 2024}}</ref> In 2013, Olympus released the [[Olympus E-M1]], which is a Micro Four Thirds camera with enhanced support for legacy Four Thirds lenses using on-chip phase detection autofocus.<ref>{{cite web |url=https://www.dpreview.com/reviews/olympus-om-d-e-m1/7 |title=Olympus OM-D E-M1 Review: Autofocus |first1=Richard |last1=Butler |first2=Allison |last2=Johnson |first3=Andrew |last3=Westlake |date=October 28, 2013 |work=DP Review |access-date=1 May 2024 |quote=The key difference between contrast-detection autofocus (as generally used in compacts and mirrorless cameras), and phase detection (as traditionally used in DSLRs) is that phase detection is able to assess how out-of-focus the image is, and determine directly how far and in what direction the lens needs to move its focus group to achieve a sharp image. Contrast detection has to scan through at least part of its focus range to find the point of optimal focus.<br/>{{pad|1.0em}}This difference totally changes to the way lenses need to be designed - those optimised for phase detection need to be able to race to a specified location very quickly, whereas contrast detection lenses need to be able to scan back and forth very quickly. Traditionally, very few lenses designed for phase detection have coped very well with the subtle, scanning motion required for contrast detection. Those designed for Four Thirds SLRs could autofocus on previous Micro Four Thirds cameras, but only slowly and hesitantly.}}</ref> Olympus discontinued production of the ''Zuiko Digital'' lenses for Four Thirds in 2017.<ref>{{cite news |url=https://www.dpreview.com/articles/9877975278/olympus-brings-down-the-curtain-on-the-four-thirds-system |title=In memoriam: Olympus brings down the curtain on the legacy Four Thirds system |first=Richard |last=Butler |date=March 10, 2017 |work=DP Review |access-date=1 May 2024}}</ref>

==Design==
The standard for the lens mount is described in US Patent 6,910,814.<ref>{{US patent|6910814}}</ref>

=== Sensor size and aspect ratio ===
[[File:Sensor sizes overlaid inside - updated.svg|thumb|300px|Drawing showing the relative sizes of sensors used in most current digital cameras, including Four Thirds System]]
The name of the system stems from the size of the image sensor used in the cameras, which is commonly referred to as a ''4/3" type'' or ''4/3 type'' sensor.  The common inch-based sizing system is derived from vacuum image-sensing [[video camera tube]]s, which are now obsolete.  The imaging area of a Four Thirds sensor is equal to that of a video camera tube of 4/3 inch diameter.<ref name='Olympus-Europe 4/3'>{{cite web| url= http://www.olympus-europa.com/consumer/dslr_7045.htm | title = No more compromises: The Four Thirds Standard |access-date=2009-04-17 |work=Olympus | location = Europe | archive-url = https://web.archive.org/web/20110714235957/http://www.olympus-europa.com/consumer/dslr_7045.htm | archive-date = 2011-07-14}}</ref>

[[Image:SensorSizes.svg|thumb|300px|left|Sizes of the sensors used in most current digital cameras relative to a standard 35mm frame]]
The usual [[image sensor format|size of the sensor]] is 18&nbsp;mm × 13.5&nbsp;mm (22.5&nbsp;mm diagonal), with an imaging area of 17.3&nbsp;mm × 13.0&nbsp;mm, giving a diagonal of {{#expr:(17.3^2+13.0^2)^0.5 round 2}}&nbsp;mm.<ref name= 'Olympus-Europe 4/3' /><ref name = "Four Thirds">{{Cite journal | url = http://www.four-thirds.org/en/about/standard.html | publisher = Four Thirds Consortium | title = The Four Thirds Standard | access-date = 2009-04-17 | year = 2008 | archive-url = https://web.archive.org/web/20090307060248/http://www.four-thirds.org/en/about/standard.html | archive-date = 2009-03-07 | url-status = dead }}</ref> The sensor's area is about 30–40% smaller than [[APS-C]] sensors used in most other DSLRs, but still around 9 times larger than the 1/2.5" sensors typically used in [[Digital camera#Compacts|compact digital cameras]]. Incidentally, the imaging area of a Four Thirds sensor is almost identical to that of [[110 film]].

The emphasis on the 4:3 [[Aspect ratio (image)|image aspect ratio]] sets Four Thirds apart from other DSLR systems, which usually adhere to the 3:2 aspect ratio of the traditional [[35mm format]]. However, the standard only specifies the sensor diagonal, thus Four Thirds cameras using the standard 3:2 aspect ratio would be possible;<ref name = "Four Thirds Whitepaper">{{Cite journal | url = http://www.four-thirds.org/en/fourthirds/whitepaper.html | publisher = Four Thirds Consortium | title = Four Thirds Standard | type = whitepaper | access-date = 2009-10-09 | year = 2009 | archive-date = 2009-06-28 | archive-url = https://web.archive.org/web/20090628094225/http://www.four-thirds.org/en/fourthirds/whitepaper.html | url-status = dead }}</ref> notably newer Panasonic Micro Four Thirds models even offer shooting at multiple aspect ratios while maintaining the same image diagonal.  For instance, the [[Panasonic GH1]] uses a multi-aspect sensor designed to maximize use of the [[image circle]] at 4:3, 3:2, and 16:9; each ratio having a diagonal of 22.5&nbsp;mm.<ref name = "Utpott">{{Citation | publisher = PBase | url = http://www.pbase.com/viztyger/image/109862835/original.jpg | title = G1 sensor vs GH1 sensor | first = Björn | last = Utpott | format = [[JPEG]] diagram}}.</ref>

Sensor aspect ratio influences lens design.  For example, many lenses designed by Olympus for the Four Thirds System contain internal rectangular baffles or permanently mounted "petal" [[lens hood]]s that optimise their operation for the 4:3 aspect ratio.{{Citation needed|date=October 2009}}

In an interview John Knaur, a Senior Product Manager at Olympus, stated that "The FourThirds refers to both the size of the imager and the aspect ratio of the sensor".<ref name="Knaur">{{Citation | archive-url = https://web.archive.org/web/20021205033057/http://www.a-digital-eye.com/Olympus43Q%26A.html | archive-date = 2002-12-05 | url = http://www.a-digital-eye.com/Olympus43Q&A.html | last = Knaur | first = John | title = Interview | date = October 1, 2002 | publisher = A Digital Eye | url-status = dead }}.</ref>  He also pointed out the similarities between 4:3 and the [[Photo print sizes|standard printing size]] of 8×10 as well as medium format 6×4.5 and 6×7 cameras, thus helping explain Olympus' rationale on choosing 4:3 rather than 3:2.

=== Advantages ===
*[[File:Olympus E-420.jpg|thumb|An [[Olympus E-420]] camera, sold with a very thin [[Olympus Zuiko Digital 25mm f/2.8|25mm "pancake" lens]]. The E-4XX series was advertised as the smallest true [[Digital single-lens reflex camera|DSLR]] in the world.<ref>{{Citation | url = http://www.letsgodigital.org/en/camera/review/128/page_1.html | title = Olympus E400 Digital Camera Review | publisher = Let’s go digital}}.</ref>]]The smaller sensor size makes it possible to produce smaller, lighter camera bodies and lenses. In particular, the Four-Thirds system allows the development of compact, large aperture lenses. Lenses with equivalent [[field of view]] for larger sensor formats tend to be larger, heavier and more expensive.
* Telecentric optical path means that light hitting the sensor is traveling closer to perpendicular to the sensor, resulting in brighter corners, and improved off-center resolution, particularly on wide angle lenses.
* Because the flange focal distance is shorter than those of legacy film SLR lens mounts, such as Canon FD, Canon EF, Nikon F, Olympus OM, and Pentax K, lenses for many other SLR types may be fitted to Four Thirds cameras using simple mechanical adapter rings. Such mechanical adapter rings typically require manual setting of focus and aperture.<ref>{{Citation | url = http://www.biofos.com/cornucop/omz_e1.html | publisher = Biofos | title = Cornucopia | contribution = OMs on E1}}.</ref>

=== Disadvantages ===
* Compared to a larger sensor with equivalent pixel count, a Four Thirds sensor gathers disproportionately less light per pixel. Not only are the individual photosites smaller, but each loses more of its total area to support circuitry and edge shading than a larger photosite would. With less captured light to work with, each photosite requires additional amplification, with associated higher noise as well as reduced [[Dynamic range#Photography|dynamic range]]. A telecentric lens design can mitigate this problem, but the sensor remains more sensitive to the angle of incoming light, and has more pronounced image corner light falloff.
* The resolution of a sensor is often measured as the total sensor pixel count in [[megapixels]], and this is often a primary decision-making factor in choosing a camera. Smaller sensors are tougher to manufacture with the same pixel count as larger sensors, and place a greater demand on optics, since a lens must achieve greater absolute resolving power to produce an adequate picture on a smaller sensor, compared to a larger sensor of the same pixel resolution. A smaller pixel active area reduces the averaging effect and allows a better sampling of high spatial frequencies, mitigating this problem.<ref name="Full Frame Sensor vs Crop Sensor – Which is Right For You?">{{Citation | url = http://digital-photography-school.com/full-frame-sensor-vs-crop-sensor-which-is-right-for-you#ixzz0s3xIW5yZ | title = Full Frame Sensor vs Crop Sensor – Which is Right For You? | date = 20 August 2008 | publisher = Digital Photography School}}.</ref>
* To get the same [[angle of view]] as with a larger sensor, the focal length of the lens used with a Four Thirds sensor needs to be shorter. However, to get the same [[depth of field]] and light gathering capability as with a larger sensor, the lens aperture needs to be kept constant. In other words, the [[focal ratio]] of the lens must be smaller on the Four Thirds system to give the same depth of field<ref>{{cite web|url=http://www.dofmaster.com/equations.html|title=Depth of Field Equations|website=www.dofmaster.com|access-date=12 April 2018}}</ref> and image noise. Since it is more difficult to produce faster lenses (lenses with smaller focal ratios), it can be difficult or impossible to find a lens that produces as shallow a depth of field, and gathers as much light, as an equivalent lens on larger formats. For instance, a 35mm "full-frame" DSLR can match the depth of field of a Four Thirds camera by closing down the aperture by two stops; but it may be more difficult or impossible for a Four Thirds System to match the shallow depth of field of a 35mm camera using a fast lens.

=== Differences ===
* Most Four Thirds cameras (notably those manufactured by Olympus) use an aspect ratio of 4:3 rather than 3:2; newer models offer cropping to 3:2, but this results in a reduced image diagonal (i.e., the effective crop factor is then 2.08).<ref>{{Cite web|title = Specs - Lumix G Digital Camera: DMC-GX7{{!}} Panasonic Australia|url = http://www.panasonic.com/au/consumer/lumix-cameras-video-cameras/lumix-g-cameras/dmc-gx7.specs.html|access-date = 2015-08-28|archive-date = 2016-03-04|archive-url = https://web.archive.org/web/20160304093810/http://www.panasonic.com/au/consumer/lumix-cameras-video-cameras/lumix-g-cameras/dmc-gx7.specs.html|url-status = dead}}</ref>

==Members and products==
=== Four Thirds System companies ===
As of the 2006 [[Photo Marketing Association]] Annual Convention and Trade Show, the Four Thirds consortium consisted of the following companies:
* [[Fujifilm|Fuji]]
* [[Eastman Kodak|Kodak]]
* [[Leica Camera|Leica]]
* [[Olympus Corporation|Olympus]]
* [[Panasonic]]
* [[Sanyo]]
* [[Sigma Corporation|Sigma]]

This does not imply a commitment to end user products by each company.  Historically, only Leica, Olympus, and Panasonic have produced bodies. Olympus and Leica/Panasonic have made dedicated Four Thirds lenses, and Sigma makes adapted versions of their "DC" lenses for APS-C format DSLRs.  Kodak once sold sensors to Olympus for use in their Four Thirds bodies, but the newer Olympus Four Thirds cameras used Panasonic sensors.

=== Four Thirds System cameras ===
The majority of Four Thirds System cameras and Four Thirds lenses are made by Olympus. Many Four Thirds cameras use "sensor-shift" in-body [[image stabilization]], making the need for image stabilization technology in its lenses unnecessary. All Four Thirds cameras also incorporate an automatic sensor cleaning device, in which a thin glass filter in front of the sensor vibrates at 30&nbsp;kHz, causing dust to fall off and adhere to a piece of sticky material below. Olympus' E-system camera bodies are noted for their inclusion of a wide range of firmware-level features and customization, good JPEG engine, and compact size. Because of the smaller format of Four Thirds, the viewfinders tend to be smaller than on comparable cameras.<ref>{{cite web | url = http://dpreview.com/reviews/olympuse30/page34.asp | date = 2009-04-09 | title = DPReview E-30 conclusions page}}</ref><ref>{{cite web | url = http://dpreview.com/reviews/olympuse510/ | date = 2009-04-09 | title = DPReview E-510 review}}</ref>

Manufacture of Four Thirds cameras came to an end after the introduction of the mirrorless Micro Four Thirds format. The models that were marketed include:
{|class="wikitable sortable" style="font-size:90%;text-align:center;"
|+Four Thirds system cameras<ref>{{cite web |url=http://www.four-thirds.org/en/fourthirds/body.html |title=Four Thirds Products – Cameras |publisher=Four Thirds Consortium |archive-date=August 30, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110830221556/http://www.four-thirds.org/en/fourthirds/body.html}}</ref>
! Name !! class="unsortable" | Image !! Segment !! Announced
! Max. Resolution [[Megapixel|(MP)]] !! Sensor
! [[Image stabilization|IS]] !! Sealed
! Dims. (W×H×D) !! Wgt
! class="unsortable" | Refs.
|-
! [[Olympus E-1]]
| [[File:E-1 vorne.jpg|frameless|upright=0.3]] || Professional || {{dts|2003|06|24|abbr=on}}
| 2560×1920<br/>(5.1) || CCD
| {{no X}} || {{yes C}}
| {{cvt|141.0|×|104.0|×|81.0|mm|in|1}} || {{cvt|660|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e1/specifications |title=Olympus E-1 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-300]]
| [[File:E-300.jpg|frameless|upright=0.3]] || Adv. Amateur || {{dts|2004|09|27|abbr=on}}
| 3264×2448<br/>(8) || CCD
| {{no X}} || {{no X}}
| {{cvt|146.5|×|85|×|64|mm|in|1}} || {{cvt|580|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e300/specifications |title=Olympus E-300 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-500]]
| [[File:Olympus E-500 with Minolta MD Lens (5391265164).jpg|frameless|upright=0.3]] || Consumer || {{dts|2005|09|26|abbr=on}}
| 3264×2448<br/>(8) || CCD
| {{no X}} || {{no X}}
| {{cvt|129.5|×|94.5|×|66.0|mm|in|1}} || {{cvt|435|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e500/specifications |title=Olympus E-500 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-330]]
| [[File:E-330 Body (2178212535).jpg|frameless|upright=0.3]] || rowspan=3 | Adv. Amateur || {{dts|2006|01|26|abbr=on}}
| rowspan=3 | 3136×2352<br/>(7.5) || rowspan=3 | CMOS
| rowspan=3 {{no X}} || rowspan=3 {{no X}}
| {{cvt|140.0|×|87.0|×|72.0|mm|in|1}} || {{cvt|550|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e330/specifications |title=Olympus E-330 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Panasonic DMC-L1]]
| [[File:Lumix-L1 img 0961.jpg|frameless|upright=0.3]] || {{dts|2006|02|26|abbr=on}}
| rowspan=2 | {{cvt|145.8|×|86.9|×|80.0|mm|in|1}} || rowspan=2 | {{cvt|530|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/panasonic_dmcl1/specifications |title=Panasonic DMC-L1 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Leica Digilux 3]]
| [[File:Leica-IMG 0095.JPG|frameless|upright=0.3]] || {{dts|2006|09|14|abbr=on}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/leica_digilux3/specifications |title=Leica Digilux 3 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-400]]
| [[File:Oly e 400 voorkant.jpg|frameless|upright=0.3]] || Consumer || {{dts|2006|09|14|abbr=on}}
| 3648×2736<br/>(10.1) || CCD
| {{no X}} || {{no X}}
| {{cvt|129.5|×|91.0|×|53.0|mm|in|1}} || {{cvt|375|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e400/specifications |title=Olympus E-400 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-410]]
| [[File:Olympus E-410 17,5-45 Front.jpg|frameless|upright=0.3]] || Consumer || rowspan=2 | {{dts|2007|03|05|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{no X}} || {{no X}}
| {{cvt|129.5|×|91.0|×|53.0|mm|in|1}} || {{cvt|375|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e410/specifications |title=Olympus E-410 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-510]]
| [[File:E510.jpg|frameless|upright=0.3]] || Adv. Amateur
| 3648×2736<br/>(10.1) || CMOS
| {{yes C}} || {{no X}}
| {{cvt|136.0|×|91.5|×|68.0|mm|in|1}} || {{cvt|460|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e510/specifications |title=Olympus E-510 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Panasonic DMC-L10]]
| [[File:Lumix DMC-L10 img 1252.jpg|frameless|upright=0.3]] || Consumer || {{dts|2007|08|30|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{no X}} || {{no X}}
| {{cvt|134.5|×|95.5|×|77.5|mm|in|1}} || {{cvt|530|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e410/specifications |title=Olympus E-410 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-3]]
| [[File:Olympus E-3 IMG 0664-2.jpg|frameless|upright=0.3]] || Professional || {{dts|2007|10|16|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{yes C}} || {{yes C}}
| {{cvt|142.5|×|116.5|×|74.5|mm|in|1}} || {{cvt|810|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e3/specifications |title=Olympus E-3 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-420]]
| [[File:Olympus E-420 EZ40150.jpg|frameless|upright=0.3]] || Consumer || {{dts|2008|03|05|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{no X}} || {{no X}}
| {{cvt|129.5|×|91.0|×|53.0|mm|in|1}} || {{cvt|380|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e420/specifications |title=Olympus E-420 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-520]]
| [[File:Olympus E-520 EZ1442 Front.jpg|frameless|upright=0.3]] || Adv. Amateur || {{dts|2008|05|13|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{yes C}} || {{no X}}
| {{cvt|136.0|×|91.5|×|68.0|mm|in|1}} || {{cvt|475|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e520/specifications |title=Olympus E-520 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-30]]
| [[File:Olympus E30-IMG 2441.jpg|frameless|upright=0.3]] || Semi-professional || {{dts|2008|11|05|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{yes C}} || {{no X}}
| {{cvt|141.5|×|107.5|×|75.0|mm|in|1}} || {{cvt|655|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e30/specifications |title=Olympus E-30 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-620]]
| [[File:Olympus E-620 with battery grip.jpg|frameless|upright=0.3]] || Adv. Amateur|| {{dts|2009|02|24|abbr=on}}
| 4032×3024<br/>(12.3) || CMOS
| {{yes C}} || {{no X}}
| {{cvt|130.0|×|94.0|×|60.0|mm|in|1}} || {{cvt|475|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e620/specifications |title=Olympus E-620 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-450]]
| [[File:Olympus E-450.JPG|frameless|upright=0.3]] || Consumer || {{dts|2009|03|31|abbr=on}}
| 3648×2736<br/>(10.1) || CMOS
| {{no X}} || {{no X}}
| {{cvt|129.5|×|91.0|×|53.0|mm|in|1}} || {{cvt|380|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e450/specifications |title=Olympus E-450 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-600]]
| <!--[[File:|frameless|upright=0.3]]--> || Adv. Amateur|| {{dts|2009|08|30|abbr=on}}
| 4032×3024<br/>(12.3) || CMOS
| {{yes C}} || {{no X}}
| {{cvt|130.0|×|94.0|×|60.0|mm|in|1}} || {{cvt|475|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e600/specifications |title=Olympus E-600 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|-
! [[Olympus E-5]]
| [[File:Olympus-E5.jpg|frameless|upright=0.3]] || Professional || {{dts|2010|09|14|abbr=on}}
| 4032×3024<br/>(12.3) || CMOS
| {{yes C}} || {{yes C}}
| {{cvt|142.5|×|116.5|×|74.5|mm|in|1}} || {{cvt|800|g}}
| <ref>{{cite web |url=https://www.dpreview.com/products/olympus/slrs/oly_e5/specifications |title=Olympus E-5 Specs |publisher=DP Review |access-date=1 May 2024}}</ref>
|}

=== Four Thirds System lenses ===
[[Image:FourLenses.jpg|thumb|300px|right|Four lenses for the Four Thirds System. From left to right, three Olympus zooms (40–150mm, 11–22mm and 14–54mm) and a Sigma prime (30mm).]]
The Four Thirds [[lens mount]] is specified to be a [[Bayonet mount|bayonet]] type with a [[flange focal distance]] of 38.67&nbsp;mm.

There were 41 lenses made for the Four Thirds System standard, including two that were modified and re-released in approximately 2009 with improved mechanisms but otherwise identical optics.{{efn|These were the 14–54mm and 50–200mm, both manufactured by Olympus; each version is counted as a separate lens.}}<ref name = "Wrotniak">{{Citation | url = http://www.wrotniak.net/photo/oly-e/lenses.html | last = Wrotniak | title = Lens list}}.</ref>

Before announcing that it would stop production of Four Thirds lenses in early 2017,<ref>{{cite web|url=https://www.dpreview.com/articles/9877975278/olympus-brings-down-the-curtain-on-the-four-thirds-system |title=In memoriam: Olympus brings down the curtain on the legacy Four Thirds system |first=Richard |last=Butler |website=Digital Photography Review |date=March 10, 2017 |access-date=March 16, 2017}}</ref> [[Olympus Corporation|Olympus]] produced 24 lenses for the Four Thirds System under their "[[Zuiko Digital]]" brand. They are divided into three grades&nbsp;— Standard, High Grade and Super High Grade.  High Grade lenses have faster maximum apertures, but are significantly more expensive and larger, and the Super High Grade zooms have constant maximum aperture over the full zoom range; all but the Standard grade are weather-sealed.  Lenses within each grade cover the range from wide-angle to super telephoto.<ref name= 'Oly lens roadmap'>{{cite web|url=http://www.olympus.co.uk/consumer/images/E-System_Lens_Roadmap.pdf |title = Olympus E-System Zuiko Digital Interchangeable Lens Roadmap |access-date=2007-11-29 |publisher=Olympus | location = UK |archive-url = https://web.archive.org/web/20071015011727/http://www.olympus.co.uk/consumer/images/E-System_Lens_Roadmap.pdf | archive-date = 2007-10-15}}</ref><ref name = 'SLRgear lens tests'>{{cite web |url=http://www.slrgear.com/reviews/showcat.php/cat/7 | publisher = SLRgear | title = Olympus Lens Tests}}</ref> The Zuiko Digital lenses are well regarded for their consistently good optics.<ref name='dpreview lens reviews'>{{cite web|url= http://www.dpreview.com/lensreviews/olympus_12-60_2p8-4_o20/page4.asp | title = Olympus Zuiko 12–60mm 1:2.8–1:4 lens review | publisher = DPReview}}</ref> The following table lists all Zuiko Digital lenses available at the time Olympus stopped Four Thirds production:<ref name = 'Zuiko digital lenses'>{{cite web | url = http://asia.olympus-imaging.com/products/dslr/lenses/ | title = Lens list | publisher = Olympus | location = Asia | access-date = 2009-08-20 | archive-date = 2009-08-31 | archive-url = https://web.archive.org/web/20090831060611/http://asia.olympus-imaging.com/products/dslr/lenses/ | url-status = dead }}</ref>

{| class="wikitable"
|-
!
! Wide angle
! Standard
! Telephoto
! Super telephoto
! Special-purpose
|-
| '''Standard'''
| [[Olympus Zuiko Digital ED 9-18mm f/4-5.6|9–18&nbsp;{{f/}}4–5.6]]
| [[Olympus Zuiko Digital ED 14-42mm f/3.5-5.6|14–42&nbsp;{{f/}}3.5–5.6]]<br />[[Olympus Zuiko Digital 25mm f/2.8|25&nbsp;{{f/}}2.8 "pancake"]]
| [[Olympus Zuiko Digital ED 40-150mm f/4.0-5.6|40–150&nbsp;{{f/}}4–5.6]]
| [[Olympus Zuiko Digital ED 70-300mm f/4.0-5.6|70–300&nbsp;{{f/}}4–5.6&nbsp;macro]]
| [[Olympus Zuiko Digital 35mm f/3.5 Macro|35&nbsp;{{f/}}3.5&nbsp;macro]]<br />[[Olympus Zuiko Digital ED 18-180mm f/3.5-6.3|18–180&nbsp;{{f/}}3.5-6.3&nbsp;superzoom]]
|-
| '''High Grade'''
| [[Olympus Zuiko Digital 11-22mm f/2.8-3.5|11–22&nbsp;{{f/}}2.8–3.5]]
| [[Olympus Zuiko Digital ED 12-60mm f/2.8-4 SWD|12–60&nbsp;{{f/}}2.8–4]]<br />[[Olympus Zuiko Digital 14-54mm f/2.8-3.5 II|14–54&nbsp;{{f/}}2.8–3.5&nbsp;II]]
| colspan=2 | [[Olympus Zuiko Digital ED 50-200mm f/2.8-3.5 SWD|50–200&nbsp;{{f/}}2.8–3.5&nbsp;SWD]]
| [[Olympus Zuiko Digital ED 50mm f/2.0 Macro|50&nbsp;{{f/}}2 macro]]<br />[[Olympus Zuiko Digital ED 8mm f/3.5 Fisheye|8&nbsp;{{f/}}3.5 fisheye]]
|-
| '''Super&nbsp;High&nbsp;Grade'''
| [[Olympus Zuiko Digital ED 7-14mm f/4.0|7–14&nbsp;{{f/}}4]]
| [[Olympus Zuiko Digital ED 14-35mm f/2.0 SWD|14–35&nbsp;{{f/}}2]]
| [[Olympus Zuiko Digital ED 35-100mm f/2.0|35–100&nbsp;{{f/}}2]]<br />[[Olympus Zuiko Digital ED 150mm f/2.0|150&nbsp;{{f/}}2]]
| [[Olympus Zuiko Digital ED 90-250mm f/2.8|90–250&nbsp;{{f/}}2.8]]<br />[[Olympus Zuiko Digital 300mm f/2.8|300&nbsp;{{f/}}2.8]]
|}
Olympus also made 1.4× and 2× [[teleconverter]]s and an electronically coupled [[extension tube]].

[[Sigma Corporation|Sigma]] has adapted 13 lenses for the Four Thirds System, ranging from 10&nbsp;mm to 800&nbsp;mm, including several for which no equivalent exists: the fast primes (30&nbsp;mm {{f/|1.4|link=yes}} and 50&nbsp;mm {{f/|1.4}}) and extreme telephoto (300–800&nbsp;mm {{f/}}5.6). As of 2014 all Sigma lenses for the Four Thirds System have been discontinued.

[[Leica Camera|Leica]] has designed four lenses for the Four Thirds System: fast and slow normal zooms and a 14–150&nbsp;mm super-zoom, all with Panasonic's image stabilization system, and an unstabilized {{f/|1.4|link=yes}} 25&nbsp;mm [[prime lens|prime]].  These are manufactured and sold by Panasonic.

An official list of available lenses can be found on Four-Thirds.org web site.<ref name = "FourThirdsOfficial">{{Citation | url = http://www.four-thirds.org/en/fourthirds/lens_chart.html | publisher = Four Thirds | title = Lens list | access-date = 2014-06-17 | archive-date = 2021-01-16 | archive-url = https://web.archive.org/web/20210116105542/https://www.four-thirds.org/en/fourthirds/lens_chart.html | url-status = dead }}.</ref>

As for the system itself, it was silently discontinued in favor of the [[#Micro_Four_Thirds_System|Micro Four Thirds System]].

{|class="wikitable sortable" style="font-size:90%;text-align:center;"
|+List of Four Thirds System lenses<ref>{{cite web |url=http://four-thirds.org/jp/common/pdf/lensCatalog.pdf |title=Lens Catalog |date=2010 |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20101124084551/http://four-thirds.org/jp/common/pdf/lensCatalog.pdf |archive-date=November 24, 2010 |lang=ja |url-status=dead}}</ref><ref>{{cite web |url=http://www.four-thirds.org/en/common/pdf/2012LensCatalog_en.pdf |title=Lens Catalog |date=2012 |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20120523074919/http://www.four-thirds.org/en/common/pdf/2012LensCatalog_en.pdf |archive-date=May 23, 2012 |url-status=dead}}</ref>
! Name !! Mfr.
! [[Focal length|F.L.]] (mm) !! [[Aperture|Ap.]], Blades{{efn|Number of aperture blades; (C) if designed for a circular opening}}
! Splash / Dust{{efn|Sealed against splashes and dust.}} !! [[Optical image stabilization|OIS]]
! [[Photographic lens design|Const.]] !! [[Angle of view (photography)|Angle]]
! Min. focus
! Filter (mm) !! Dims. (Φ×L) !! Wgt.
! class="unsortable" | Notes / Refs.
|-
| colspan=13 style="background:#fdd;" data-sort-value=zzz-000 | [[Fisheye lens]]es
|-
! style="background:#fdd;font-size:90%;" | [[Olympus Zuiko Digital ED 8mm f/3.5 Fisheye|ZUIKO DIGITAL ED 8mm F3.5 Fisheye]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#fdd;font-size:125%" | 8
| {{f/|3.5}}–22, 7(C)
| {{yes C}} || {{no X}}
| 10e/6g || 180° || {{cvt|0.135|m|in|2}}
| — || {{cvt|79|×|77|mm|in|2}} || {{cvt|485|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/8_35F/ |title=ZUIKO DIGITAL ED 8mm F3.5 Fisheye |archive-url=https://web.archive.org/web/20120228174940/http://asia.olympus-imaging.com/products/dslr/lenses/8_35F/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>

|-
| colspan=13 style="background:#fed;" data-sort-value=zzz-001 | [[Ultra wide angle lens]]es
|-
! style="background:#fed;font-size:90%;" | [[Olympus Zuiko Digital ED 7-14mm f/4.0|ZUIKO DIGITAL ED 7-14mm F4.0]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#fed;font-size:125%" | 7–14
| {{f/|4}}–22, 7(C)
| {{yes C}} || {{no X}}
| 18e/12g || 114–75° || {{cvt|0.25|m|in|2}}
| — || {{cvt|86.5|×|119.5|mm|in|2}} || {{cvt|780|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-wideZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/7-14_40/ |title=ZUIKO DIGITAL ED 7-14mm F4.0 |archive-url=https://web.archive.org/web/20120228174940/http://asia.olympus-imaging.com/products/dslr/lenses/7-14_40/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#fed;font-size:90%;" | [[Olympus Zuiko Digital ED 9-18mm f/4-5.6|ZUIKO DIGITAL ED 9-18mm F4.0-5.6]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#fed;font-size:125%" | 9–18
| {{f/|4~5.6}}–22, 7(C)
| {{no X}} || {{no X}}
| 13e/9g || 100–62° || {{cvt|0.25|m|in|2}}
| 72 || {{cvt|79.5|×|73|mm|in|2}} || {{cvt|275|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-wideZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/9-18_40-56/ |title=ZUIKO DIGITAL ED 9-18mm F4.0-5.6 |archive-url=https://web.archive.org/web/20120220031928/http://asia.olympus-imaging.com/products/dslr/lenses/9-18_40-56/ |archive-date=February 20, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>

|-
| colspan=13 style="background:#ffd;" data-sort-value=zzz-002 | [[Wide angle lens]]es
|-
! style="background:#ffd;font-size:90%;" | 10-20mm F4-5.6 EX DC HSM
! style="background:#f44;color:#fff;" | Sigma
! style="background:#ffd;font-size:125%" | 10–20
| {{f/|4~5.6}}–22, 6
| {{no X}} || {{no X}}
| 14e/10g || 94.5–56.8° || {{cvt|0.24|m|in|2}}
| 77 || {{cvt|83.5|×|86.4|mm|in|2}} || {{cvt|495|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-wideZ>{{cite web |url=http://www.four-thirds.org/en/fourthirds/wide.html |title=Four Thirds Lenses: Wide Zoom |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090619224026/http://www.four-thirds.org/en/fourthirds/wide.html |archive-date=June 19, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://www.sigmaphoto.com/shop/10-20mm-f4-56-ex-dc-hsm-sigma |title=10-20mm F4-5.6 EX DC HSM |publisher=Sigma |archive-date=March 26, 2010 |archive-url=https://web.archive.org/web/20100326095903/http://www.sigmaphoto.com/shop/10-20mm-f4-56-ex-dc-hsm-sigma |url-status=dead}}</ref>
|-
! style="background:#ffd;font-size:90%;" | [[Olympus Zuiko Digital 11-22mm f/2.8-3.5|ZUIKO DIGITAL 11-22mm F2.8-3.5]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#ffd;font-size:125%" | 11–22
| {{f/|2.8~3.5}}–22, 7
| {{yes C}} || {{no X}}
| 12e/10g || 89–53° || {{cvt|0.28|m|in|2}}
| 72 || {{cvt|75|×|92.5|mm|in|2}} || {{cvt|485|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-wideZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/11-22_28-35/ |title=ZUIKO DIGITAL 11-22mm F2.8-3.5 |archive-url=https://web.archive.org/web/20120422034318/http://asia.olympus-imaging.com/products/dslr/lenses/11-22_28-35/ |archive-date=April 22, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>

|-
| colspan=13 style="background:#dfd;" data-sort-value=zzz-003 | [[Normal lens]]es
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital ED 12-60mm f/2.8-4 SWD|ZUIKO DIGITAL ED 12-60mm F2.8-4.0 SWD]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 12–60
| {{f/|2.8~4}}–22, 7(C)
| {{yes C}} || {{no X}}
| 14e/10g || 84–20° || {{cvt|0.25|m|in|2}}
| 72 || {{cvt|79.5|×|98.5|mm|in|2}} || {{cvt|575|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ>{{cite web |url=http://www.four-thirds.org/en/fourthirds/standard.html |title=Four Thirds Lenses: Standard Zoom |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090619224006/http://www.four-thirds.org/en/fourthirds/standard.html |archive-date=June 19, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/12-60_28-40swd/ |title=ZUIKO DIGITAL ED 12-60mm F2.8-4.0 SWD |archive-url=https://web.archive.org/web/20120228174940/http://asia.olympus-imaging.com/products/dslr/lenses/12-60_28-40swd/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital ED 14-35mm f/2.0 SWD|ZUIKO DIGITAL ED 14-35mm F2.0 SWD]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 14–35
| {{f/|2.0}}–22, 9(C)
| {{yes C}} || {{no X}}
| 18e/17g || 75–34° || {{cvt|0.35|m|in|2}}
| 77 || {{cvt|86|×|123|mm|in|2}} || {{cvt|900|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/14-35_20swd/ |title=ZUIKO DIGITAL ED 14-35mm F2.0 SWD |archive-url=https://web.archive.org/web/20120228174051/http://asia.olympus-imaging.com/products/dslr/lenses/14-35_20swd/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital ED 14-42mm f/3.5-5.6|ZUIKO DIGITAL ED 14-42mm F3.5-5.6]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 14–42
| {{f/|3.5~5.6}}–22, 7(C)
| {{no X}} || {{no X}}
| 10e/8g || 75–29° || {{cvt|0.25|m|in|2}}
| 58 || {{cvt|65.5|×|61|mm|in|2}} || {{cvt|190|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/14-42_35-56/ |title=ZUIKO DIGITAL ED 14-42mm F3.5-5.6 |archive-url=https://web.archive.org/web/20120401222400/http://asia.olympus-imaging.com/products/dslr/lenses/14-42_35-56/ |archive-date=April 1, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital 14-45mm f/3.5-5.6|ZUIKO DIGITAL ED 14-45mm F3.5-5.6]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 14–45
| {{f/|3.5~5.6}}–22, 7
| {{no X}} || {{no X}}
| 12e/10g || 75–27° || {{cvt|0.38|m|in|2}}
| 58 || {{cvt|71|×|86.5|mm|in|2}} || {{cvt|285|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ-archive>{{cite web |url=http://www.four-thirds.org/en/fourthirds/standard.html#c=FINISH |title=Four Thirds Lenses: Standard Zoom (discontinued models) |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20120419044747/http://www.four-thirds.org/en/fourthirds/standard.html#c=FINISH |archive-date=April 19, 2012 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/14-45_35-56/ |title=ZUIKO DIGITAL 14-45mm F3.5-5.6 |archive-url=https://web.archive.org/web/20120308201646/http://asia.olympus-imaging.com/products/dslr/lenses/14-45_35-56/ |archive-date=March 8, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Panasonic Leica D Vario-Elmarit 14-50mm f/2.8-3.5 ASPH Mega OIS|LEICA D VARIO-ELMARIT 14-50mm F2.8-3.5 ASPH. MEGA O.I.S.]]
! style="background:#282;color:#fff;" | Panasonic
! style="background:#dfd;font-size:125%" rowspan=2 | 14–50
| {{f/|2.8~3.5}}–22, 7
| {{no X}} || {{yes C}}
| 16e/12g || rowspan=2 | 75–24° || rowspan=2 | {{cvt|0.29|m|in|2}}
| 72 || {{cvt|78.1|×|97.4|mm|in|2}} || {{cvt|490|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens.html |title=LEICA D VARIO-ELMARIT 14-50mm/F2.8-3.5 ASPH. MEGA O.I.S. L-ES014050 |archive-url=https://web.archive.org/web/20090517042637/http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens.html |archive-date=May 17, 2009 |url-status=dead |publisher=Panasonic |website=LUMIX Leica D Lenses}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Panasonic Leica D Vario-Elmar 14-50mm f/3.8-5.6 Mega OIS|LEICA D VARIO-ELMAR 14-50mm F3.8-5.6 ASPH. MEGA O.I.S.]]
! style="background:#282;color:#fff;" | Panasonic
| {{f/|3.8~5.6}}–22, 7
| {{no X}} || {{yes C}}
| 15e/11g
| 67 || {{cvt|78|×|84.5|mm|in|2}} || {{cvt|435|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens02.html |title=LEICA D VARIO-ELMAR 14-50mm/F3.8-5.6 ASPH. MEGA O.I.S. L-RS014050 |archive-url=https://web.archive.org/web/20090515132048/http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens02.html |archive-date=May 15, 2009 |url-status=dead |publisher=Panasonic |website=LUMIX Leica D Lenses}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital 14-54mm f/2.8-3.5|ZUIKO DIGITAL 14-54mm F2.8-3.5]]
! style="background:#44f;color:#fff;" rowspan=2 | Olympus
! rowspan=2 style="background:#dfd;font-size:125%" | 14–54
| {{f/|2.8~3.5}}–22, 7
| rowspan=2 {{yes C}} || rowspan=2 {{no X}}
| rowspan=2 | 15e/11g || rowspan=2 | 75–23° || rowspan=2 | {{cvt|0.22|m|in|2}}
| rowspan=2 | 67 || {{cvt|73.5|×|88.5|mm|in|2}} || {{cvt|435|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ-archive/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/14-54_28-35/ |title=ZUIKO DIGITAL 14-54mm F2.8-3.5 |archive-url=https://web.archive.org/web/20120506162415/http://asia.olympus-imaging.com/products/dslr/lenses/14-54_28-35/ |archive-date=May 6, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital 14-54mm f/2.8-3.5 II|ZUIKO DIGITAL 14-54mm F2.8-3.5 II]]
| {{f/|2.8~3.5}}–22, 7(C)
| {{cvt|74.5|×|88.5|mm|in|2}} || {{cvt|440|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/14-54_28-35ll/ |title=ZUIKO DIGITAL 14-54mm F2.8-3.5 II |archive-url=https://web.archive.org/web/20120228174940/http://asia.olympus-imaging.com/products/dslr/lenses/14-54_28-35ll/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital 17.5-45mm f/3.5-5.6|ZUIKO DIGITAL ED 17.5-45mm F3.5-5.6]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 17.5–45
| {{f/|3.5~5.6}}–22, 7(C)
| {{no X}} || {{no X}}
| 7e/7g || 63–27° || {{cvt|0.28|m|in|2}}
| 52 || {{cvt|71|×|70|mm|in|2}} || {{cvt|210|g|oz|1}}
| style="font-size:90%;text-align:left;" | Kit lens with E-500<ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/17-45_35-56/ |title=ZUIKO DIGITAL 17.5-45mm F3.5-5.6 |publisher=Olympus Imaging Asia |archive-url=https://web.archive.org/web/20120213233424/http://asia.olympus-imaging.com/products/dslr/lenses/17-45_35-56/ |archive-date=February 13, 2012 |url-status=dead}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Sigma 18–50mm f/2.8 EX DC Macro lens|18-50mm F2.8 EX DC MACRO]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#dfd;font-size:125%" rowspan=2 | 18–50
| {{f/|2.8}}–22, 7
| {{no X}} || {{no X}}
| 15e/13g || rowspan=2 | 62–24° || {{cvt|0.2|m|in|2}}
| 72 || {{cvt|79|×|91.1|mm|in|2}} || {{cvt|525|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/18-50mm-f28-ex-dc-macro-sigma |title=18-50mm F2.8 EX DC MACRO |publisher=Sigma |archive-date=March 23, 2010 |archive-url=https://web.archive.org/web/20100323144450/http://www.sigmaphoto.com/shop/18-50mm-f28-ex-dc-macro-sigma |url-status=dead}}</ref>
|-
! style="background:#dfd;font-size:90%;" | 18-50mm F3.5-5.6 DC
! style="background:#f44;color:#fff;" | Sigma
| {{f/|3.5~5.6}}–22, 7
| {{no X}} || {{no X}}
| 8e/8g || {{cvt|0.25|m|in|2}}
| 58 || {{cvt|67.5|×|67.8|mm|in|2}} || {{cvt|270|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3286&navigator=6 |title=18-50mm F3.5-5.6 DC |publisher=Sigma |archive-date=May 18, 2007 |archive-url=https://web.archive.org/web/20070518060116/http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3286&navigator=6 |url-status=dead}}</ref>
|-
! style="background:#dfd;font-size:90%;" | 18-125mm F3.5-5.6 DC
! style="background:#f44;color:#fff;" | Sigma
! style="background:#dfd;font-size:125%" | 18–125
| {{f/|3.5}}~5.6–22, 9
| {{no X}} || {{no X}}
| 15e/14g || 62–9.9° || {{cvt|0.5|m|in|2}}
| 62 || {{cvt|70|×|83|mm|in|2}} || {{cvt|520|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3287&navigator=6 |title=18-125mm F3.5-5.6 DC |publisher=Sigma |archive-date=May 18, 2007 |archive-url=https://web.archive.org/web/20070518060325/http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3287&navigator=6 |url-status=dead}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Sigma 24mm f/1.8 EX DG lens|24mm F1.8 EX DG ASPHERICAL MACRO]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#dfd;font-size:125%" | 24
| {{f/|1.8}}–22, 9
| {{no X}} || {{no X}}
| 10e/9g || 49° || {{cvt|0.18|m|in|2}}
| 77 || {{cvt|83.6|×|87.9|mm|in|2}} || {{cvt|520|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3281&navigator=4 |title=24mm F1.8 EX DG ASPHERICAL MACRO |publisher=Sigma |archive-date=May 19, 2007 |archive-url=https://web.archive.org/web/20070519213014/http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3281&navigator=4 |url-status=dead}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Panasonic Leica D Summilux Asph 25mm F1.4|LEICA D SUMMILUX 25mm F1.4 ASPH.]]
! style="background:#282;color:#fff;" | Panasonic
! style="background:#dfd;font-size:125%" | 25
| {{f/|1.4}}–16, 7(C)
| {{no X}} || {{no X}}
| 10e/9g || 47° || {{cvt|0.38|m|in|2}}
| 72 || {{cvt|77.7|×|75|mm|in|2}} || {{cvt|510|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl>{{cite web |url=http://www.four-thirds.org/en/fourthirds/single.html |title=Four Thirds Lenses: Single Focal Length |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090620064431/http://www.four-thirds.org/en/fourthirds/single.html |archive-date=June 20, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://panasonic.net/avc/lumix/systemcamera/dslr/lens/fixed_focal_length_lens.html |title=LEICA D SUMMILUX 25mm/F1.4 ASPH. L-X025 |archive-url=https://web.archive.org/web/20090515131347/http://panasonic.net/avc/lumix/systemcamera/dslr/lens/fixed_focal_length_lens.html |archive-date=May 15, 2009 |url-status=dead |publisher=Panasonic |website=LUMIX Leica D Lenses}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Olympus Zuiko Digital 25mm f/2.8|ZUIKO DIGITAL 25mm F2.8]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#dfd;font-size:125%" | 25
| {{f/|2.8}}–22, 7(C)
| {{no X}} || {{no X}}
| 5e/4g || 47° || {{cvt|0.2|m|in|2}}
| 43 || {{cvt|64|×|23.5|mm|in|2}} || {{cvt|96|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/25_28/ |title=ZUIKO DIGITAL 25mm F2.8 |archive-url=https://web.archive.org/web/20120401222144/http://asia.olympus-imaging.com/products/dslr/lenses/25_28/ |archive-date=April 1, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#dfd;font-size:90%;" | [[Sigma 30mm f/1.4 EX DC HSM lens|30mm F1.4 EX DC HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#dfd;font-size:125%" | 30
| {{f/|1.4}}–16, 8
| {{no X}} || {{no X}}
| 7e/7g || 40° || {{cvt|0.4|m|in|2}}
| 62 || {{cvt|77.8|×|63.9|mm|in|2}} || {{cvt|410|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/30mm-f14-ex-dc-hsm-sigma |title=30mm F1.4 EX DC HSM |publisher=Sigma |archive-date=March 27, 2010 |archive-url=https://web.archive.org/web/20100327135303/http://www.sigmaphoto.com/shop/30mm-f14-ex-dc-hsm-sigma |url-status=dead}}</ref>

|-
| colspan=13 style="background:#ddf;" data-sort-value=zzz-004 | [[Superzoom lens]]es
|-
! style="background:#ddf;font-size:90%;" | [[Panasonic Leica D Vario-Elmar 14-150mm F3.5-5.6 Asph Mega OIS|LEICA D VARIO-ELMAR 14-150mm F3.5-5.6 ASPH. MEGA O.I.S.]]
! style="background:#282;color:#fff;" | Panasonic
! style="background:#ddf;font-size:125%" | 14–150
| {{f/|3.5~5.6}}–22, 7
| {{no X}} || {{yes C}}
| 15e/11g || 75–8.2° || {{cvt|0.5|m|in|2}}
| 72 || {{cvt|78.5|×|90.4|mm|in|2}} || {{cvt|535|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens03.html |title=LEICA D VARIO-ELMAR 14-150mm/F3.5-5.6 ASPH. MEGA O.I.S. L-RS014150 |archive-url=https://web.archive.org/web/20090513233706/http://panasonic.net/avc/lumix/systemcamera/dslr/lens/zoom_lens03.html |archive-date=May 13, 2009 |url-status=dead |publisher=Panasonic |website=LUMIX Leica D Lenses}}</ref>
|-
! style="background:#ddf;font-size:90%;" | [[Olympus Zuiko Digital ED 18-180mm f/3.5-6.3|ZUIKO DIGITAL ED 18-180mm F3.5-6.3]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#ddf;font-size:125%" | 18–180
| {{f/|3.5~6.3}}–22, 7
| {{no X}} || {{no X}}
| 15e/13g || 62–6.9° || {{cvt|0.45|m|in|2}}
| 62 || {{cvt|78|×|84.5|mm|in|2}} || {{cvt|435|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-stdZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/18-180_35-63 |title=ZUIKO DIGITAL 18-180mm F3.5-6.3 |archive-url=https://web.archive.org/web/20120331025456/http://asia.olympus-imaging.com/products/dslr/lenses/18-180_35-63 |archive-date=March 31, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>

|-
| colspan=13 style="background:#edf;" data-sort-value=zzz-005 | [[Telephoto lens]]es
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 35-100mm f/2.0|ZUIKO DIGITAL ED 35-100mm F2.0]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#edf;font-size:125%" | 35–100
| {{f/|2.0}}–22, 9(C)
| {{yes C}} || {{no X}}
| 21e/18g || 34–12° || {{cvt|1.4|m|in|2}}
| 77 || {{cvt|96.5|×|213.5|mm|in|2}} || {{cvt|1650|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ>{{cite web |url=http://www.four-thirds.org/en/fourthirds/telephoto.html |title=Four Thirds Lenses: Telephoto Zoom |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090619224010/http://www.four-thirds.org/en/fourthirds/telephoto.html |archive-date=June 19, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/35-100_20 |title=ZUIKO DIGITAL ED 35-100mm F2.0 |archive-url=https://web.archive.org/web/20120228175346/http://asia.olympus-imaging.com/products/dslr/lenses/35-100_20 |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital 40-150mm f/3.5-4.5|ZUIKO DIGITAL 40-150mm F3.5-4.5]]
! style="background:#44f;color:#fff;" rowspan=2 | Olympus
! style="background:#edf;font-size:125%" rowspan=2 | 40–150
| {{f/|3.5~4.5}}–22, 7(C)
| rowspan=2 {{no X}} || rowspan=2 {{no X}}
| 13e/10g || rowspan=2 | 30–8.2° || {{cvt|1.5|m|in|2}}
| rowspan=2 | 58 || {{cvt|77|×|107|mm|in|2}} || {{cvt|425|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/40-150_35-45/ |title=ZUIKO DIGITAL 40-150mm F3.5-4.5 |archive-url=https://web.archive.org/web/20120324003328/http://asia.olympus-imaging.com/products/dslr/lenses/40-150_35-45/ |archive-date=March 24, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 40-150mm f/4.0-5.6|ZUIKO DIGITAL ED 40-150mm F4-5.6]]
| {{f/|4.0~5.6}}–22, 7(C)
| 12e/9g || {{cvt|1.4|m|in|2}}
| {{cvt|65.5|×|72|mm|in|2}} || {{cvt|220|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/40-150_40-56/ |title=ZUIKO DIGITAL ED 40-150mm F4.0-5.6 |archive-url=https://web.archive.org/web/20120401221625/http://asia.olympus-imaging.com/products/dslr/lenses/40-150_40-56/ |archive-date=April 1, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Sigma 50mm f/1.4 EX DG HSM lens|50mm F1.4 EX DG HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 50
| {{f/|1.4}}–16, 9
| {{no X}} || {{no X}}
| 8e/6g || 24° || {{cvt|0.45|m|in|2}}
| 77 || {{cvt|84.5|×|73.7|mm|in|2}} || {{cvt|530|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/50mm-f14-ex-dg-hsm-sigma |title=50mm F1.4 EX DG HSM |publisher=Sigma |archive-date=March 27, 2010 |archive-url=https://web.archive.org/web/20100327135309/http://www.sigmaphoto.com/shop/50mm-f14-ex-dg-hsm-sigma |url-status=dead}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 50-200mm f/2.8-3.5|ZUIKO DIGITAL ED 50-200mm F2.8-3.5]]
! style="background:#44f;color:#fff;" rowspan=2 | Olympus
! style="background:#edf;font-size:125%" rowspan=2 | 50–200
| {{f/|2.8~3.5}}–22, 9
| rowspan=2 {{yes C}} || rowspan=2 {{no X}}
| rowspan=2 | 16e/15g || rowspan=2 | 24–6.2° || rowspan=2 | {{cvt|1.2|m|in|2}}
| rowspan=2 | 67 || {{cvt|83|×|157|mm|in|2}} || {{cvt|920|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive>{{cite web |url=http://www.four-thirds.org/en/fourthirds/telephoto.html#c=FINISH |title=Four Thirds Lenses: Telephoto Zoom (discontinued models) |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20110923223137/http://www.four-thirds.org/en/fourthirds/telephoto.html#c=FINISH |archive-date=September 23, 2011 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/50-200_28-35/ |title=ZUIKO DIGITAL ED 50-200mm F2.8-3.5 |archive-url=https://web.archive.org/web/20120422034154/http://asia.olympus-imaging.com/products/dslr/lenses/50-200_28-35/ |archive-date=April 22, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 50-200mm f/2.8-3.5 SWD|ZUIKO DIGITAL ED 50-200mm F2.8-3.5 SWD]]
| {{f/|2.8~3.5}}–22, 9(C)
| {{cvt|86.5|×|157|mm|in|2}} || {{cvt|995|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/50-200_28-35swd/ |title=ZUIKO DIGITAL ED 50-200mm F2.8-3.5 SWD |archive-url=https://web.archive.org/web/20120506161951/http://asia.olympus-imaging.com/products/dslr/lenses/50-200_28-35swd/ |archive-date=May 6, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Sigma 50-500mm f/4-6.3 DG lens|APO 50-500mm F4.0-6.3 EX DG HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 50–500
| {{f/|4.0~6.3}}–22, 9
| {{no X}} || {{no X}}
| 20e/16g || 24–2.5° || {{cvt|1.0–3.0|m|in|2}}
| 86 || {{cvt|95|×|223.9|mm|in|2}} || {{cvt|1830|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/50-500mm-f4-63-ex-dg-hsm-sigma |title=50-500mm F4-6.3 EX DG HSM |publisher=Sigma |archive-date=March 23, 2010 |archive-url=https://web.archive.org/web/20100323143820/http://www.sigmaphoto.com/shop/50-500mm-f4-63-ex-dg-hsm-sigma |url-status=dead}}</ref>
|-
! style="background:#edf;font-size:90%;" | 55-200mm F4.0-5.6 DC
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 55–200
| {{f/|4.0~5.6}}–22, 8
| {{no X}} || {{no X}}
| 12e/9g || 22–2.5° || {{cvt|1.1|m|in|2}}
| 55 || {{cvt|71.5|×|92.5|mm|in|2}} || {{cvt|330|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3288&navigator=6 |title=55-200mm F4-5.6 DC |publisher=Sigma |archive-date=June 16, 2007 |archive-url=https://web.archive.org/web/20070616012528/http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3288&navigator=6 |url-status=dead}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Sigma 70-200mm f/2.8 EX DG OS HSM lens|APO 70-200mm F2.8 II EX DG MACRO HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 70–200
| {{f/|2.8}}–22, 9
| {{no X}} || {{no X}}
| 18e/15g || 18–6.2° || {{cvt|1.0|m|in|2}}
| 77 || {{cvt|86.5|×|189.8|mm|in|2}} || {{cvt|1385|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/70-200mm-f28-ex-dg-apomacro-hsm-ii-sigma |title=70-200mm F2.8 EX DG APOMacro HSM II |publisher=Sigma |archive-date=March 25, 2010 |archive-url=https://web.archive.org/web/20100325140828/http://www.sigmaphoto.com/shop/70-200mm-f28-ex-dg-apomacro-hsm-ii-sigma |url-status=dead}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 70-300mm f/4.0-5.6|ZUIKO DIGITAL ED 70-300mm F4.0-5.6]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#edf;font-size:125%" | 70–300
| {{f/|4.0~5.6}}–22, 9(C)
| {{no X}} || {{no X}}
| 14e/10g || 18–4.1° || {{cvt|0.96–1.2|m|in|2}}
| 58 || {{cvt|80|×|127.5|mm|in|2}} || {{cvt|615|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/70-300_40-56 |title=ZUIKO DIGITAL ED 70-300mm F4.0-5.6 |archive-url=https://web.archive.org/web/20120324203950/http://asia.olympus-imaging.com/products/dslr/lenses/70-300_40-56 |archive-date=March 24, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 90-250mm f/2.8|ZUIKO DIGITAL ED 90-250mm F2.8]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#edf;font-size:125%" | 90–250
| {{f/|2.8}}–22, 9(C)
| {{yes C}} || {{no X}}
| 17e/12g || 14–5.0° || {{cvt|2.5|m|in|2}}
| 105 || {{cvt|124|×|276|mm|in|2}} || {{cvt|3270|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/90-250_28 |title=ZUIKO DIGITAL ED 90-250mm F2.8 |archive-url=https://web.archive.org/web/20120313040748/http://asia.olympus-imaging.com/products/dslr/lenses/90-250_28 |archive-date=March 13, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | APO 135-400mm F4.5-5.6 DG
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 135–400
| {{f/|4.5~5.6}}–22, 9
| {{no X}} || {{no X}}
| 13e/11g || 9.2–3.1° || {{cvt|2.0–2.2|m|in|2}}
| 77 || {{cvt|83.5|×|189|mm|in|2}} || {{cvt|1280|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3275&navigator=3 |title=APO 135-400mm F4.5-5.6 DG |publisher=Sigma |archive-date=May 19, 2007 |archive-url=https://web.archive.org/web/20070519054820/http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3275&navigator=3 |url-status=dead}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital ED 150mm f/2.0|ZUIKO DIGITAL ED 150mm F2.0]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#edf;font-size:125%" | 150
| {{f/|2.0}}–22, 9(C)
| {{yes C}} || {{no X}}
| 11e/9g || 8.2° || {{cvt|1.4|m|in|2}}
| 82 || {{cvt|100|×|150|mm|in|2}} || {{cvt|1465|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/150_20/ |title=ZUIKO DIGITAL ED 150mm F2.0 |archive-url=https://web.archive.org/web/20120401221917/http://asia.olympus-imaging.com/products/dslr/lenses/150_20/ |archive-date=April 1, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Olympus Zuiko Digital 300mm f/2.8|ZUIKO DIGITAL ED 300mm F2.8]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#edf;font-size:125%" | 300
| {{f/|2.8}}–22, 9
| {{yes C}} || {{no X}}
| 13e/11g || 4.1° || {{cvt|2.4|m|in|2}}
| 43(D) || {{cvt|127|×|285|mm|in|2}} || {{cvt|3290|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-sfl/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/300_28/ |title=ZUIKO DIGITAL ED 300mm F2.8 (Built to Order) |archive-url=https://web.archive.org/web/20120506161840/http://asia.olympus-imaging.com/products/dslr/lenses/300_28/ |archive-date=May 6, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#edf;font-size:90%;" | [[Sigma 300–800mm f/5.6 EX DG HSM lens|APO 300-800mm F5.6 EX DG HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#edf;font-size:125%" | 300–800
| {{f/|5.6}}–32, 9
| {{no X}} || {{no X}}
| 18e/16g || 4.1–1.6° || {{cvt|6.0|m|in|2}}
| 46(R) || {{cvt|156.5|×|549.4|mm|in|2}} || {{cvt|5915|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-teleZ-archive/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/300-800mm-f56-ex-dg-apo-hsm-sigma |title=300-800mm F5.6 EX DG APO HSM |publisher=Sigma |archive-date=March 27, 2010 |archive-url=https://web.archive.org/web/20100327135550/http://www.sigmaphoto.com/shop/300-800mm-f56-ex-dg-apo-hsm-sigma |url-status=dead}}</ref>

|-
| colspan=13 style="background:#ddd;" data-sort-value=zzz-006 | [[Macro lens]]es
|-
! style="background:#ddd;font-size:90%;" | [[Olympus Zuiko Digital 35mm f/3.5 Macro|ZUIKO DIGITAL 35mm F3.5 Macro]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#ddd;font-size:125%" | 35
| {{f/|3.5}}–22, 7(C)
| {{no X}} || {{no X}}
| 6e/6g || 34° || {{cvt|0.146|m|in|2}}
| 52 || {{cvt|71|×|53|mm|in|2}} || {{cvt|165|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-macro>{{cite web |url=http://www.four-thirds.org/en/fourthirds/macro.html |title=Four Thirds Lenses: Macro |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090620105021/http://www.four-thirds.org/en/fourthirds/macro.html |archive-date=June 20, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/35_35M/ |title=ZUIKO DIGITAL 35mm F3.5 Macro |archive-url=https://web.archive.org/web/20120111130149/http://asia.olympus-imaging.com/products/dslr/lenses/35_35M/ |archive-date=January 11, 2012 |url-status=dead |publisher=Olympus Imaging Asia}}</ref>
|-
! style="background:#ddd;font-size:90%;" | [[Olympus Zuiko Digital ED 50mm f/2.0 Macro|ZUIKO DIGITAL ED 50mm F2.0 Macro]]
! style="background:#44f;color:#fff;" | Olympus
! style="background:#ddd;font-size:125%" | 50
| {{f/|2.0}}–22, 7
| {{yes C}} || {{no X}}
| 11e/10g || 24° || {{cvt|0.24|m|in|2}}
| 52 || {{cvt|71|×|61.5|mm|in|2}} || {{cvt|300|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-macro/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/50_20M |title=ZUIKO DIGITAL ED 50mm F2.0 Macro |archive-url=https://web.archive.org/web/20120419102640/http://asia.olympus-imaging.com/products/dslr/lenses/50_20M |archive-date=April 19, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#ddd;font-size:90%;" | [[Sigma 105mm f/2.8 EX DG lens|MACRO 105mm F2.8 EX DG]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#ddd;font-size:125%" | 105
| {{f/|2.8}}–22, 8
| {{no X}} || {{no X}}
| 11e/10g || 12° || {{cvt|0.31|m|in|2}}
| 58 || {{cvt|74|×|102.9|mm|in|2}} || {{cvt|470|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-macro/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/105mm-f28-ex-dg-macro-sigma |title=105mm F2.8 EX DG Macro |publisher=Sigma |archive-date=March 11, 2010 |archive-url=https://web.archive.org/web/20100311032429/http://www.sigmaphoto.com/shop/105mm-f28-ex-dg-macro-sigma |url-status=dead}}</ref>
|-
! style="background:#ddd;font-size:90%;" | [[Sigma 150mm f/2.8 APO Macro EX DG HSM lens|APO MACRO 150mm F2.8 EX DG HSM]]
! style="background:#f44;color:#fff;" | Sigma
! style="background:#ddd;font-size:125%" | 150
| {{f/|2.8}}–22, 9
| {{no X}} || {{no X}}
| 16e/12g || 8.2° || {{cvt|0.38|m|in|2}}
| 72 || {{cvt|79.6|×|142.4|mm|in|2}} || {{cvt|920|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-macro/><ref>{{cite web |url=http://www.sigmaphoto.com/shop/150mm-f28-ex-apo-dg-hsm-macro-sigma |title=
150mm F2.8 EX APO DG HSM Macro |publisher=Sigma |archive-date=February 25, 2010 |archive-url=https://web.archive.org/web/20100225054912/http://www.sigmaphoto.com/shop/150mm-f28-ex-apo-dg-hsm-macro-sigma |url-status=dead}}</ref>

|-
| colspan=13 style="background:#fdf;" data-sort-value=zzz-007 | [[Teleconverter]]s
|-
! style="background:#fdf;font-size:90%;" | ZUIKO DIGITAL 1.4× Teleconverter EC-14
! style="background:#44f;color:#fff;" | Olympus
! style="background:#fdf;font-size:125%" | 1.4×
| 1.4×
| {{no X}} || {{no X}}
| 6e/5g || approx. ÷1.4 || ×1
| — || {{cvt|68|×|22|mm|in|2}} || {{cvt|170|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-accy>{{cite web |url=http://www.four-thirds.org/en/fourthirds/accessories.html |title=Four Thirds Lenses: Accessories |publisher=Four Thirds Consortium |archive-url=https://web.archive.org/web/20090622025526/http://www.four-thirds.org/en/fourthirds/accessories.html |archive-date=June 22, 2009 |url-status=dead}}</ref><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/ec-14/ |title=ZUIKO DIGITAL 1.4× Teleconverter EC-14 |archive-url=https://web.archive.org/web/20120228174940/http://asia.olympus-imaging.com/products/dslr/lenses/ec-14/ |archive-date=February 28, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|-
! style="background:#fdf;font-size:90%;" | ZUIKO DIGITAL 2.0× Teleconverter EC-20
! style="background:#44f;color:#fff;" | Olympus
! style="background:#fdf;font-size:125%" | 2.0×
| 2.0×
| {{no X}} || {{no X}}
| 7e/5g || approx. ÷2 || ×1
| — || {{cvt|68|×|41|mm|in|2}} || {{cvt|225|g|oz|1}}
| style="font-size:90%;text-align:left;" | <ref name=FT-accy/><ref>{{cite web |url=http://asia.olympus-imaging.com/products/dslr/lenses/ec-20 |title=ZUIKO DIGITAL 2.0× Teleconverter EC-20 |archive-url=https://web.archive.org/web/20120504083816/http://asia.olympus-imaging.com/products/dslr/lenses/ec-20 |archive-date=May 4, 2012 |url-status=dead |publisher=Olympus Imaging Asia |access-date=31 October 2023}}</ref>
|}

== See also ==
*[[Lenses for SLR and DSLR cameras]]
*[[Lens mount]]&nbsp;— list of lens mounts
*{{section link|Video camera tube|Size}}, origin of 4/3 inch sensor measurement

==Notes==
{{notelist}}

== References ==
{{Reflist|2}}

==External links==
{{Commons category}}
*[http://www.four-thirds.org Official Four Thirds System site] {{Webarchive|url=https://web.archive.org/web/20201101015404/http://www.four-thirds.org/ |date=2020-11-01 }}
*[http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6910814 Four Thirds US patent 6,910,814] {{Webarchive|url=https://web.archive.org/web/20181216025929/http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6910814 |date=2018-12-16 }}; [https://web.archive.org/web/20070307113309/http://www.pat2pdf.org/patents/pat6910814.pdf PDF version] (1.7 MiB)
*[http://www.wrotniak.net/photo/oly-e/index.html Andrzej Wrotniak's pages about the Four Thirds System]&nbsp;— includes a complete lens list
*[https://web.archive.org/web/20070927203137/http://www.fourthirds-user.com/ Four Thirds User&nbsp;— independent site and user-community dedicated to the Four Thirds System, including Micro Four Thirds]
{{Olympus Corporation|state=expanded}}
{{Eastman Kodak}}
{{Four Thirds lenses}}
{{Olympus DSLR cameras}}
{{Authority control}}

{{DEFAULTSORT:Four Thirds System}}
[[Category:Four Thirds System| ]]
[[Category:Lens mounts]]
[[Category:Photography equipment]]
[[Category:Kodak]]
[[Category:Olympus products]]
[[Category:Japanese inventions]]