Lens mount adapters: what fits what
Adapters only work "downhill" — from a long flange distance into a shorter one, which is why DSLR glass adapts to mirrorless but rarely the reverse. Whether AUTOFOCUS survives depends entirely on the specific adapter; the maker's own claims for each are below.
| Mount pair | The answer in one line |
|---|---|
| Canon EF / EF-S → Canon RF | Every Canon EF and EF-S lens works on every EOS R-series body through Canon's own Mount Adapter EF-EOS R — Canon states lenses work without compromising functionality, speed or quality. Details → |
| Nikon F → Nikon Z | Nikon's FTZ II adapter gives full AF/AE with AF-S, AF-P and AF-I type F-mount lenses — per Nikon, roughly 90 of about 360 mountable F-mount lenses retain full functionality. Details → |
| Sony/Minolta A → Sony E | The LA-EA5 is the one to get: on Sony's supported newer bodies it autofocuses even motor-less screw-drive A-mount lenses using on-sensor phase detection. Details → |
| Canon EF / EF-S → Sony E | Canon EF glass autofocuses on Sony E bodies through electronic smart adapters. Details → |
| Canon EF / EF-S → Fujifilm X | The Fringer EF-FX Pro III gives Canon EF and EF-S lenses fast phase-detect autofocus on Fujifilm X bodies, with AF-S and AF-C and an electronic aperture ring — Fringer publishes a tested list of 133 supported EF lenses. Details → |
| Canon EF → Nikon Z | Viltrox's EF-Z2 is a 0.71x speed booster, not a plain adapter: it keeps native autofocus and stabilisation, supports Nikon face/eye-detection AF, widens the field of view by 0.71x and gains about a stop of light. Details → |
| Sony E → Nikon Z | Megadap's ETZ21 Pro+ and Techart's TZE-02 both let Sony E-mount autofocus lenses work on Nikon Z bodies — ultra-thin electronic adapters that pass through AF and aperture control. Details → |
| Sigma SA / Canon EF (Sigma-made EF-mount lenses only) → L-mount | Sigma's MC-21 brings Sigma-made SA-mount and EF-mount lenses to L-mount bodies with single-shot autofocus (AF-S works; AF-C does not). Details → |
| Leica M → Fujifilm X | Fujifilm's M Mount Adapter is the company's only lens adapter for X-mount — manual-focus Leica M glass with electronic contacts for the function button, focal-length registration and image corrections. Details → |