K&F Concept · Nikon F → Sony E adapter
K&F Concept Nikon F-NEX Pro — Nikon F → Sony E adapter
Pro-line Nikon F (AI / AI-S / AF-D / G-type) onto Sony E with a copper-inset bayonet and matte-black interior. Mechanical-only — no AF, no electronic aperture pass-through.
At a glance
- Vendor
- K&F Concept
- Release year
- 2019
- Body-side contacts
- None (purely mechanical)
- Flags
- firmware-updatable —weather-sealed —requires glass —
What this adapter preserves
Compatibility for Nikon F lens on a Sony E body (computed from the lensmount dataset — open the Nikon F to Sony E adapter page for the full verdict, flange clearance, and adapter caveats).
- Focus: Partial AF
- IS: IS / IBIS preserved
- Aperture: Electronic aperture
- Infinity focus: Reaches infinity
What it does
Built-in stop-down ring engages the lens's aperture lever — required for G-type Nikkors that lack an aperture ring on the lens itself. AI / AI-S / AF-D users set aperture on the lens ring as usual; the adapter ring is left wide open.
Common questions
- Why does the K&F Nikon F-NEX Pro have an aperture ring on the adapter itself?
- Because Nikon's G-type lenses (released 2000 onwards) removed the lens's aperture ring — aperture is set electronically on the body. On a mirrorless body with no Nikon electronics, the adapter's built-in stop-down ring is the only way to control aperture: it mechanically pushes the lens's aperture lever, closing the iris. For older AI / AI-S / AF-D Nikkors with their own aperture ring, leave the adapter ring at wide open and set aperture on the lens.
- Can it autofocus AF-S Nikkor lenses on a Sony body?
- No — mechanical adapter, no electronic communication. AF-S lenses still have their in-lens motor, but with no AF protocol from a Sony body, the motor never receives focus commands. Sony focus-peaking and magnify-to-focus aids are the workaround for manual focus. For AF on F-mount lenses through to Sony E, the Commlite CM-ENF-E1 Pro is the only viable option.
- Does the adapter preserve VR (vibration reduction) on Nikkor VR lenses?
- No — VR runs from Nikon body firmware over Nikon's F-mount electronic protocol. With a mechanical adapter, no electronics pass through, so VR stays inactive even though the lens's motor is still physically present. On-sensor IBIS in your Sony body (5-axis on most current FE bodies) handles stabilisation instead.
Mounts on either side
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- Urth Nikon F to Fuji X — onto Fujifilm X · 2020
- Kipon T/S Nikon F-GFX — onto Fujifilm GFX · 2018
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- Commlite CM-ENF-E1 Pro — onto Sony E · 2018
Same body-side mount (Sony E)
- Sony LA-EA5 — from Sony A · 2020
- Sigma MC-11 — from Canon EF · 2016
- Metabones EF-E Mark V — from Canon EF · 2017
- Metabones Speed Booster ULTRA 0.71× EF-E — from Canon EF · 2014
- Viltrox EF-NEX IV (EF-E) — from Canon EF · 2018
- Techart LM-EA9 — from Leica M · 2022
- Voigtländer VM-E Close Focus — from Leica M · 2015
- Sony LA-EA4 — from Sony A · 2014
- Sony LA-EA3 — from Sony A · 2013
- Fotodiox Pro EF-NEX — from Canon EF · 2018
- K&F Concept M42-NEX Pro — from M42 · 2018
- K&F Concept Pentax K-NEX Pro — from Pentax K · 2019
- Urth M42 to Sony E — from M42 · 2019
- Urth Leica M to Sony E — from Leica M · 2020
- Kipon Baveyes EF-FE 0.7x — from Canon EF · 2017
- Novoflex SONY/OM — from Olympus OM · 2016
- 7Artisans M-FE — from Leica M · 2018
- Commlite CM-EF-NEX HS — from Canon EF · 2018
- Commlite CM-ENF-E1 Pro — from Nikon F · 2018
- Fotodiox Vizelex ND Throttle EF-NEX — from Canon EF · 2014
- K&F Concept C/Y-NEX — from Contax · 2018
- Urth Contax/Yashica to Sony E — from Contax · 2020
- K&F Concept MD-NEX — from Minolta SR · 2016
- K&F Concept PK-NEX — from Pentax K · 2016
- Fotodiox FD-NEX — from Canon FD · 2011
- Urth Olympus OM-E — from Olympus OM · 2020
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