Body mount Canon RFflange 20 mm | MechanicalAF fullIS fullAp. electronicvignettes | | - Body auto-crops to APS-C (1.6×); resolution drops accordingly on full-frame RF bodies.
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Body mount Canon FDflange 42 mm | MechanicalMFIS lens-onlyAp. wheelvignettes | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Canon EF-S lens and Canon FD body.
- Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
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Body mount Canon EF-Mflange 18 mm | MechanicalAF fullIS fullAp. electronic | | - Native image circle for EF-M's APS-C sensor.
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Body mount Nikon Zflange 16 mm | MechanicalAF partialIS fullAp. electronicvignettes | | - EF-S is electronically identical to EF, so the Fringer EF-NZ II drives AF, electronic aperture and IS on EF-S lenses exactly as on EF.
- EF-S's APS-C image circle covers only APS-C — on a full-frame Z body (Z6 III / Z8 / Z9) the camera shoots in 1.5× DX crop mode or vignettes; native coverage only on APS-C Z bodies (Z50 / Zfc / Z30).
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Body mount Sony E (incl. FE)flange 18 mm | MechanicalAF fullIS fullAp. electronicvignettes | - Sigma MC-11 EF-E
- Metabones EF-E Mark V
- Viltrox EF-E5 / EF-NEX IV
| - EF-S is electronically identical to EF, so smart EF-E adapters drive AF, IS and electronic aperture on EF-S lenses exactly as on EF — STM EF-S lenses focus reliably for stills.
- EF-S's APS-C image circle covers an APS-C E body (a6700, FX30, ZV-E10 II) natively; on a full-frame α the camera must stay in APS-C crop mode or the corners vignette.
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Body mount Fujifilm Xflange 17.7 mm | MechanicalAF fullIS fullAp. electronic | - Fringer EF-FX Pro II
- Fringer EF-FX2
| - Fringer drives phase-detect AF, IS and electronic aperture on EF-S lenses just as on EF — EF-S behaves as native EF electronically.
- Unlike full-frame EF glass (which is 1.5× cropped on X-Trans), an EF-S lens's APS-C image circle matches the X-mount APS-C sensor exactly — no coverage wasted, no crop penalty.
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Body mount Fujifilm GFX (G-mount)flange 26.7 mm | MechanicalAF partialIS lens-onlyAp. electronicvignettes | - Fringer EF-GFX Pro
- Steelsring EF-GFX
| - Electronics pass through (AF on a curated lens list, electronic aperture), but an EF-S lens's APS-C image circle is far smaller than the 44×33 mm GFX sensor — usable only in a heavy central crop, so this pairing is of limited practical value.
- Prefer full-frame EF glass for GFX; EF-S is mechanically possible but optically wasteful here.
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Body mount Micro Four Thirdsflange 19.25 mm | MechanicalAF partialIS fullAp. electronic1.33× crop | - Viltrox EF-M2 II (0.71× focal reducer, electronic)
- Metabones EF-MFT Speed Booster / Smart Adapter
| - EF-S is electronically EF, so the same smart EF-MFT adapters pass aperture / IS and drive contrast-detect AF on EF-S glass (partial — usable but slower than native).
- The Micro Four Thirds sensor is smaller than EF-S's APS-C image circle, so coverage is never an issue; a focal-reducer variant restores reach and a stop of light.
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Body mount L-Mountflange 20 mm | MechanicalAF fullIS fullAp. electronicvignettes | | - The MC-21 accepts EF and EF-S alike and passes AF, IS and electronic aperture; Sigma's own EF lenses have the widest supported list.
- EF-S's APS-C image circle is native on an APS-C L body (Leica CL / TL2); on a full-frame L body (SL2, Panasonic S5 II) stay in APS-C crop mode to avoid vignetting.
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Body mount Leica Mflange 27.8 mm | MechanicalMFIS lens-onlyAp. wheelvignettes | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Canon EF-S lens and Leica M body.
- Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
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Body mount Canon RF (cine)flange 20 mm | MechanicalMFIS lens-onlyAp. wheelvignettes | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Canon EF-S lens and Canon RF (cine) body.
- Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
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Body mount C-mountflange 17.526 mm | MechanicalMFIS lens-onlyAp. wheel1.8× crop | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Canon EF-S lens and C-mount body.
- Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
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Body mount Konica ARflange 40.5 mm | MechanicalMFIS lens-onlyAp. wheelvignettes | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Canon EF-S lens and Konica AR body.
- Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
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Body mount Canon EFflange 44 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only 0.0 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Nikon Fflange 46.5 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -2.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Sony A / Minolta Aflange 44.5 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount M42 (Pentax / Praktica screw mount)flange 45.46 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -1.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Pentax Kflange 45.46 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -1.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount PL (Positive Lock)flange 52 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -8.0 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Canon EF (cine)flange 44 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only 0.0 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Exaktaflange 44.7 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.7 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount T-mount (T2)flange 55 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -11.0 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Praktica Bflange 44.4 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.4 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Minolta SR / MC / MDflange 43.5 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only 0.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Olympus OMflange 46 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -2.0 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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Body mount Contax/Yashica (C/Y)flange 45.5 mm | Speed boosterMFIS lens-onlyAp. wheelvignettes | - Speed Booster / focal-reducer family
| - Flange clearance is only -1.5 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
- Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.
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