TidyFactPractical calculators, checked facts

Lens Adapter Compatibility Chart

A lens can reach infinity focus through an adapter only if its flange distance is longer than the body’s; the difference is the adapter thickness. Example: Canon EF (44 mm) to Canon RF (20 mm) uses the 24 mm OEM EF-EOS R adapter, with autofocus. The reverse does not work: RF lenses cannot go on EF bodies.

Last fact-checked: , by a separate, independent AI agent (Claude) against the official sources

Can it adapt?Room for an adapter
Adapter thickness
24 mm
Best focus (listed adapters)
Autofocus

The flange difference leaves room for a 24 mm adapter. Adapters listed in this tool: 1. Whether one works depends on your lens model and the maker’s compatibility list.

SensorAdapter 24 mmCanon RFCanon EF lensBody flange distance 20 mmLens flange distance 44 mm
Side cross-section, drawn to the same scale in both directions (lens and body shapes are illustrative). Thin coloured lines are light focused at infinity; the coloured hatched section is the adapter.

Adapters listed in this tool

  • OEMCanon Mount Adapter EF-EOS RAutofocusOEM. AF works with EF and EF-S lenses. RF, RF-S, EF-M and CN-E cinema lenses cannot be mounted. Some EF lenses have individual feature limits.

The calculation runs in your browser. Your data is not uploaded.

Example

Nikon F (46.5 mm) to Sony E (18 mm): the adapter must be 28.5 mm thick, so in theory there is room. This tool lists no adapter for this pair.

Common mistake

Sony A (44.5 mm) to Canon EF (44 mm) is only 0.5 mm apart. This tool assumes at least 1 mm, so it rates the pair as too thin.

Next step

To see how the angle of view changes once the lens is on, use “Crop Factor and Equivalent Focal Length”.

Nikon Z16Fujifilm X17.7Sony E18Canon EF-M18Micro Four Thirds19.25L-Mount20Canon RF20Fujifilm G26.7Leica M27.8Canon EF44Sony A (Minolta A)44.5M42 screw mount45.46Nikon F46.5010203040mm

Adapters in this chart

Focus support is only what each maker states on its own page, checked 2026-10-24. Firmware updates can change the supported lenses and bodies. This is not a complete list of adapters on the market, and not a recommendation.

AdapterLens → bodyFocusWhat the maker says
Canon Mount Adapter EF-EOS ROEMCanon EF → Canon RFAutofocusOEM. AF works with EF and EF-S lenses. RF, RF-S, EF-M and CN-E cinema lenses cannot be mounted. Some EF lenses have individual feature limits.[9][1]
Checked 2026-10-24
Canon Mount Adapter EF-EOS MOEMCanon EF → Canon EF-MAutofocusOEM. Canon says EF and EF-S lenses keep their functions on EOS M bodies with no loss of AF speed.[10]
Checked 2026-10-24
Nikon Mount Adapter FTZ II／FTZOEMNikon F → Nikon ZPartial AFOEM. AF-S, AF-P and AF-I lenses autofocus. AF lenses driven by a body motor (AF, AF-D) are manual focus only. Non-AI lenses cannot be mounted.[11][12]
Checked 2026-10-24
Sony LA-EA3OEMSony A (Minolta A) → Sony EPartial AFOEM. Only SAM and SSM lenses with a built-in motor autofocus. Video recording is manual focus.[13]
Checked 2026-10-24
Sony LA-EA5OEMSony A (Minolta A) → Sony EPartial AFOEM. A-mount AF lenses autofocus; lenses without a motor are driven by the adapter’s AF coupler. Sony’s compatibility table lists every E-mount body as “Compatible with restrictions”, depending on the lens. Autofocus is not available with some Minolta/Konica Minolta lenses and teleconverters. Video recording is manual focus.[13][14]
Checked 2026-10-24
Sigma MC-11（EF-E）Canon EF → Sony EPartial AFSigma lists support only for Sigma’s own Canon EF-mount lenses (an SA-mount version also exists). Fastest in AF-S on Fast Hybrid AF bodies; other bodies use contrast AF.[15]
Checked 2026-10-24
Sigma MC-21（EF-L）Canon EF → L-MountPartial AFSigma lists support only for Sigma’s own Canon EF-mount lenses (an SA-mount version also exists). AF-S only, no AF-C. Leica bodies are manual focus only for video.[16]
Checked 2026-10-24
Metabones EF-E Smart Adapter Mark VCanon EF → Sony EPartial AFAF-C works only on the A9, A7R III, A7 III, A7R II, A7 II, A6500 and A6300, and only in Green mode. The A9 supports phase-detection AF only.[17]
Checked 2026-10-24
Fringer EF-FX Pro IIICanon EF → Fujifilm XPartial AFTested lenses get phase-detection AF; most untested lenses get contrast AF only. EF-M lenses are not compatible. X-Trans I and earlier bodies cannot use phase-detection AF.[18]
Checked 2026-10-24
Fringer EF-NZ IICanon EF → Nikon ZAutofocusFringer says that in theory all EF and EF-S lenses and all Z bodies are supported, with AF-S, AF-C and AF-F (video). Fringer also says it has not tested all lenses yet.[19]
Checked 2026-10-24
Fringer NF-FX IINikon F → Fujifilm XPartial AFOnly AF-S, AF-P and major third-party AF lenses autofocus. Phase-detection AF is limited to X-Trans II and later bodies and optimized lenses.[20]
Checked 2026-10-24
Viltrox EF-FX1／EF-FX1 ProCanon EF → Fujifilm XAutofocusViltrox says it adapts Canon EF/EF-S lenses to Fujifilm X bodies and supports autofocus. For individual lenses and bodies, see the compatibility table on the maker’s page.[21]
Checked 2026-10-24
Viltrox EF-M1Canon EF → Micro Four ThirdsAutofocusViltrox’s spec table: EF/EF-S lenses on M43 bodies, autofocus, image stabilization supported.[22]
Checked 2026-10-24
Megadap EFTZ21Canon EF → Nikon ZAutofocusMegadap calls it an “auto adapter” for Nikon Z bodies, for EF-mount lenses from Canon, Tamron, Sigma and others.[23]
Checked 2026-10-24
Megadap ETZ21 ProSony E → Nikon ZAutofocusMegadap calls it an “auto adapter” for Nikon Z bodies, for E-mount AF lenses from Sony, Tamron, Sigma and others.[24]
Checked 2026-10-24
Techart TZC-01Canon EF → Nikon ZPartial AFTechart says it supports most Canon, Sigma, Tamron and Tokina EF lenses on the market, with AF-S and AF-C. Manual lenses without electronic contacts do not work.[27]
Checked 2026-10-24
Techart TZM-02Leica M → Nikon ZPartial AFA motor moves the whole manual lens back and forth (the maker calls 4.5 mm the optimal extension) and uses the body’s phase-detection AF, so manual lenses can autofocus. M and LTM lenses with an infinity lock button are not suitable.[25]
Checked 2026-10-24
Techart LM-EA9Leica M → Sony EPartial AFA motor moves the whole manual lens and uses the body’s phase-detection AF. Some M and LTM lenses with an infinity lock button are not compatible (the maker lists 7).[26]
Checked 2026-10-24
Leica M-Adapter LOEMLeica M → L-MountManual focusOEM (Leica makes both the M mount and the L-Mount). Leica does not state autofocus support. Leica lists the compatible M lenses.[28]
Checked 2026-10-24

Flange distance of each mount

Flange distance is the distance from the mount face to the sensor (or film). “Official” values come from the maker’s or the mount alliance’s own page. “Assumed by this tool” values are not published by the maker, so the commonly used value is shown; the chart above draws them with dashed outlines.

MountFlange distance (mm)BodySource
Nikon Z16MirrorlessOfficial[3]
Fujifilm X17.7MirrorlessOfficial[4]
Sony E18MirrorlessAssumed by this tool[7][8]
Canon EF-M18MirrorlessAssumed by this tool[7][10]
Micro Four Thirds19.25MirrorlessAssumed by this tool[7][8]
L-Mount20MirrorlessOfficial[6]
Canon RF20MirrorlessOfficial[1][2]
Fujifilm G26.7MirrorlessOfficial[5]
Leica M27.8RangefinderAssumed by this tool[7]
Canon EF44SLROfficial[1]
Sony A (Minolta A)44.5SLRAssumed by this tool[7]
M42 screw mount45.46SLRAssumed by this tool[7]
Nikon F46.5SLRAssumed by this tool[7][8]

Every combination

Rows are lenses; columns are bodies. A number is the adapter thickness needed (mm). “✕” means the lens flange distance is shorter than the body’s, so it cannot reach infinity. “Gap” means the difference is under 1 mm, too thin by this tool’s assumption.

Lens \ bodyCanon EFCanon RFCanon EF-MNikon FNikon ZSony A (Minolta A)Sony EFujifilm XFujifilm GL-MountMicro Four ThirdsLeica MM42 screw mount
Canon EF—2426✕28✕2626.317.32424.7516.2✕
Canon RF✕—2✕4✕22.3✕Gap 0Gap 0.75✕✕
Canon EF-M✕✕—✕2✕Gap 0Gap 0.3✕✕✕✕✕
Nikon F2.526.528.5—30.5228.528.819.826.527.2518.71.04
Nikon Z✕✕✕✕—✕✕✕✕✕✕✕✕
Sony A (Minolta A)Gap 0.524.526.5✕28.5—26.526.817.824.525.2516.7✕
Sony E✕✕Gap 0✕2✕—Gap 0.3✕✕✕✕✕
Fujifilm X✕✕✕✕1.7✕✕—✕✕✕✕✕
Fujifilm G✕6.78.7✕10.7✕8.79—6.77.45✕✕
L-Mount✕Gap 02✕4✕22.3✕—Gap 0.75✕✕
Micro Four Thirds✕✕1.25✕3.25✕1.251.55✕✕—✕✕
Leica M✕7.89.8✕11.8✕9.810.11.17.88.55—✕
M42 screw mount1.4625.4627.46✕29.46Gap 0.9627.4627.7618.7625.4626.2117.66—

How it decides

  • Adapter thickness = lens flange distance − body flange distance. Example: Canon EF 44 mm − Canon RF 20 mm = 24 mm[1], and the OEM EF-EOS R adapter is 24 mm long[9].
  • If the lens flange distance is shorter than the body’s, the lens would have to sit inside the body to focus at infinity, which is impossible. Canon states there is no adapter for RF lenses on EF bodies[1].
  • A tiny difference also fails. This tool assumes at least 1 mm is needed for the adapter’s metal and bayonet. Example: Sony A 44.5 mm to Canon EF 44 mm is only 0.5 mm.
  • Mirrorless bodies have short flange distances (Nikon Z 16 mm[3], Fujifilm X 17.7 mm[4], Canon RF 20 mm[2], L-Mount 20 mm[6]), so most SLR lenses leave room for an adapter. Whether one actually works depends on the adapter and the lens model.
  • Whether autofocus works depends on whether the adapter has electronic contacts, and which lenses and bodies the maker lists. Mechanical adapters are manual focus only; lenses without an aperture ring cannot change aperture either.

What this tool does not cover

  • Adapters with glass (for example, ones that put a short-flange lens on a long-flange body, or focal reducers that shrink the image circle). The glass changes image quality and focal length.
  • Mount inner diameter and the shape of the lens rear. Even with enough flange distance, the lens rear can hit parts inside the body.
  • Image circle. An APS-C lens on a full-frame body gives dark corners, or the camera crops automatically.
  • Canon FD, Pentax K, Olympus OM, Contax/Yashica and other mounts: this tool currently covers only the 13 mounts in the flange distance table.
  • Compatibility of individual lenses. Check the adapter maker’s compatibility list.

Frequently asked questions

Can Canon EF lenses be used on EOS R cameras?

Yes. With the OEM EF-EOS R adapter (24 mm long, 44 mm − 20 mm), EF and EF-S lenses keep autofocus.

Can an RF lens be adapted to an EF DSLR?

No. The RF flange distance of 20 mm is shorter than EF’s 44 mm, so the lens would have to sit inside the body to focus. Canon also states there is no such adapter.

Do all Nikon F lenses autofocus on a Z body with the FTZ?

Not all. AF-S, AF-P and AF-I lenses autofocus; AF and AF-D lenses that rely on a body motor are manual focus only. Non-AI lenses cannot be mounted; forcing one can damage the adapter or lens.

Why can mirrorless cameras take almost any lens?

Mirrorless bodies have short flange distances. The mirrorless mounts in this tool are 16–26.7 mm, while SLR lenses are 44–46.5 mm. That leaves room for an adapter in between.

What are the limits of a mechanical adapter?

Manual focus only. Lenses without an aperture ring also cannot change aperture on a mechanical adapter.

Sources

How we made this page

AI helped make this page. We first read the official sources. Then we wrote the calculation rules and the text. After that, a separate, independent AI agent (Claude) checked the page against the sources (2026-10-24). No person reviewed this page.

Official flange distances (originals opened 2026-10-24): Canon EF 44 mm and RF 20 mm (Canon Europe, Canon Canada), Nikon Z 16 mm (Nikon), Fujifilm X 17.7 mm and G 26.7 mm (FUJIFILM), L-Mount 20 mm (L-Mount Alliance).

Assumed by this tool: the makers’ pages for Canon EF-M, Nikon F, Sony A, Sony E, Micro Four Thirds, Leica M and M42 do not state a flange distance, so the commonly used values (Wikipedia flange distance table) are used. Cross-check: the Canon EF-EOS M adapter is 26.0 mm long, equal to 44 − 18; the table in the PhotoShelter article (unofficial, cross-check only) also gives Nikon F 46.5 mm, Sony E 18 mm and Micro Four Thirds 19.25 mm. That table lists L-Mount as 19 mm, which differs from the L-Mount Alliance’s official 20 mm; this tool uses the official value.

Assumed by this tool: an adapter without glass needs a flange difference of at least 1 mm. Whether it really fits also depends on the mount inner diameter and the shape of the lens rear.

Adapter focus support is only what each maker states on its own page, checked 2026-10-24. Three levels: Autofocus (the maker states AF support with no stated limit on lenses or bodies), Partial AF (the maker states only some lenses, bodies or AF modes), Manual focus. Where the maker is silent, this tool says “Not stated by the maker”. Firmware updates can change the support.

The adapter list is not a complete list of adapters on the market and not a recommendation. No prices or purchase links are shown.

The side view draws the body, adapter and lens to scale by flange distance; body shapes and lens lengths are schematic.

Last updated: 2026-10-24

Cite this page

TidyFact. (2026, October 24). Lens Adapter Compatibility Chart. https://tidyfact.com/camera/en/lens-adapter-chart/

Report an error on this page