Nikon · DSLR / SLR mount

Nikon F — flange distance, protocol, and adapter compatibility

Nikon's bayonet SLR mount, in continuous production since 1959 — the longest-lived camera mount in mainstream use. Spans mechanical AI/AI-S manual lenses, screw-drive AF/AF-D, in-lens-motor AF-S/AF-P. Notoriously hard to adapt onto: 46.5 mm flange (deepest of any common SLR mount) plus the small 44 mm throat constrains options.

Mount specifications

Flange focal distance: 46.5 mm
Throat diameter: 44 mm
Electronic protocol: Nikon F (AI/AI-S/AF/AF-D/AF-S/AF-P)
Supported formats: full-frame, APS-C
Manufacturer: Nikon
Introduced: 1959
Status: Active production

Adapting Nikon F lenses onto other bodies

You own Nikon F glass and want to mount it on a body with a different lens mount. Rows are sorted by feasibility.

Body mount	Result	Adapter examples	Caveats
Canon EF flange 44 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon EF body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Canon EF-S flange 44 mm	Mechanical MFIS lens-onlyAp. wheel1.5× crop	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon EF-S body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Canon RF flange 20 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon RF body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Canon EF-M flange 18 mm	Mechanical MFIS lens-onlyAp. wheel1.5× crop	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon EF-M body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Nikon Z flange 16 mm	Mechanical AF partialIS fullAp. electronic	Nikon FTZ II Nikon FTZ	AF-S and AF-P lenses (in-lens focus motor): full AF preserved. AF-D / AF screw-drive lenses: focus motor missing on FTZ — manual focus only with focus-confirm.
Sony A / Minolta A flange 44.5 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Sony A / Minolta A body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Sony E (incl. FE) flange 18 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Sony E (incl. FE) body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Fujifilm X flange 17.7 mm	Mechanical MFIS lens-onlyAp. wheel1.5× crop	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Fujifilm X body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Fujifilm GFX (G-mount) flange 26.7 mm	Mechanical MFIS lens-onlyAp. wheelvignettes	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Fujifilm GFX (G-mount) body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Micro Four Thirds flange 19.25 mm	Mechanical MFIS lens-onlyAp. wheel2× crop	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Micro Four Thirds body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
L-Mount flange 20 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and L-Mount body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Leica M flange 27.8 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Leica M body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Canon EF (cine) flange 44 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon EF (cine) body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Canon RF (cine) flange 20 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Canon RF (cine) body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
C-mount flange 17.526 mm	Mechanical MFIS lens-onlyAp. wheel2.7× crop	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and C-mount body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Praktica B flange 44.4 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Praktica B body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Konica AR flange 40.5 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Konica AR body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
Minolta SR / MC / MD flange 43.5 mm	Mechanical MFIS lens-onlyAp. wheel	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between Nikon F lens and Minolta SR / MC / MD body. Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.
M42 (Pentax / Praktica screw mount) flange 45.46 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only 1.0 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.
Pentax K flange 45.46 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only 1.0 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.
PL (Positive Lock) flange 52 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -5.5 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.
Exakta flange 44.7 mm	Speed booster MFIS 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.
T-mount (T2) flange 55 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -8.5 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.

Adapting other lenses onto a Nikon F body

You own a Nikon F body and want to mount glass from other systems. Mirrorless-lens-onto-DSLR-body combinations are omitted (rear element collides with the mirror box).

Lens mount	Result	Adapter examples	Caveats
PL (Positive Lock) flange 52 mm	Mechanical MFIS lens-onlyAp. ring	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between PL (Positive Lock) lens and Nikon F body.
T-mount (T2) flange 55 mm	Mechanical MFIS lens-onlyAp. ring	generic mechanical adapter ring (multiple vendors)	Mechanical adapter only — no electronic communication between T-mount (T2) lens and Nikon F body.
Canon EF flange 44 mm	Speed booster MFIS lens-onlyAp. wheel	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.
Canon EF-S flange 44 mm	Speed booster MFIS 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.
Sony A / Minolta A flange 44.5 mm	Speed booster MFIS lens-onlyAp. wheel	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.
M42 (Pentax / Praktica screw mount) flange 45.46 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -1.0 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.
Pentax K flange 45.46 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -1.0 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.
Canon EF (cine) flange 44 mm	Speed booster MFIS lens-onlyAp. wheel	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.
Exakta flange 44.7 mm	Speed booster MFIS 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.
Praktica B flange 44.4 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -2.1 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.
Konica AR flange 40.5 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -6.0 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.
Minolta SR / MC / MD flange 43.5 mm	Speed booster MFIS lens-onlyAp. wheel	Speed Booster / focal-reducer family	Flange clearance is only -3.0 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.

Adapter SKU teardown

Curated adapter SKUs that involve the Nikon F mount on either side, with the operational specifics — body-side electronic contact count, firmware-update path, weather sealing, and whether optical glass is in the path.

Nikon FTZ II
released 2021
Nikon F lens → Nikon Z body
- 11 body-side contacts
- no firmware updates
- weather sealed
- no glass — pass-through
- Replaces the original FTZ; loses the tripod foot for clearance with super-telephotos. AF preserved on AF-S and AF-P lenses; screw-drive AF-D becomes manual.
- Required for any F-mount lens on Z-series bodies — there is no third-party AF F→Z adapter.
Nikon FTZ (original)
released 2018
Nikon F lens → Nikon Z body
- 11 body-side contacts
- firmware updatable
- weather sealed
- no glass — pass-through
- First-generation F→Z adapter shipped alongside the Z6 / Z7 launch. Mechanically identical to FTZ II for the lens-side mount; the visible difference is a removable Arca-style tripod foot on the underside.
- Firmware updates are pushed by the Nikon body's firmware-update mechanism over the Z protocol — no separate USB port. Z body owners running the latest body firmware get the latest FTZ behaviour automatically.
- Still preferred over FTZ II by users mounting heavy AF-S super-telephotos (200-500 / 500 f/5.6 PF / 600 f/4) because the tripod foot offloads the lens's tail from the Z body's mount.

References

https://en.wikipedia.org/wiki/Nikon_F-mount

Mount specifications

Adapting Nikon F lenses onto other bodies

Adapting other lenses onto a Nikon F body

Adapter SKU teardown

Nikon FTZ II

Nikon FTZ (original)

References

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