Body mount Canon RFflange 20 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Canon RF body.
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Body mount Canon FDflange 42 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Canon FD body.
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Body mount Canon EF-Mflange 18 mm | MechanicalMFno ISAp. ring1.5× crop | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Canon EF-M body.
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Body mount Nikon Zflange 16 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Nikon Z body.
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Body mount Sony E (incl. FE)flange 18 mm | MechanicalMFno ISAp. ring | - Fotodiox Exakta-NEX
- K&F Concept Exakta-NEX
- Generic Exa-NEX rings
| - Auto-aperture Exakta lenses use a side-mounted plunger to stop down — adapter doesn't actuate this; use the lens's manual A/M switch (where present) or stop down by hand.
- 26.7 mm flange clearance — comfortable adapter thickness.
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Body mount Fujifilm Xflange 17.7 mm | MechanicalMFno ISAp. ring1.5× crop | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Fujifilm X body.
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Body mount Fujifilm GFX (G-mount)flange 26.7 mm | MechanicalMFno ISAp. ringvignettes | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Fujifilm GFX (G-mount) body.
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Body mount Micro Four Thirdsflange 19.25 mm | MechanicalMFno ISAp. ring2× crop | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Micro Four Thirds body.
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Body mount L-Mountflange 20 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and L-Mount body.
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Body mount Leica Mflange 27.8 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Leica M body.
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Body mount Canon RF (cine)flange 20 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Canon RF (cine) body.
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Body mount C-mountflange 17.526 mm | MechanicalMFno ISAp. ring2.7× crop | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and C-mount body.
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Body mount Konica ARflange 40.5 mm | MechanicalMFno ISAp. ring | - generic mechanical adapter ring (multiple vendors)
| - Mechanical adapter only — no electronic communication between Exakta lens and Konica AR body.
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Body mount Canon EFflange 44 mm | Speed boosterMFIS lens-onlyAp. wheel | - 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 Canon EF-Sflange 44 mm | Speed boosterMFIS lens-onlyAp. wheel1.5× crop | - 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 Nikon Fflange 46.5 mm | Speed boosterMFIS lens-onlyAp. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -1.8 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only 0.2 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.8 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.8 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -7.3 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. wheel | - 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -10.3 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only 0.3 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only 1.2 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -1.3 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. wheel | - Speed Booster / focal-reducer family
| - Flange clearance is only -0.8 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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