Lens mounts and compatibility
The mount decides which lenses you can use. Pick one to see its bodies, its first- and third-party lenses, and how adapters work.
Sony E / FE
APS-C (E) and full frame (FE, from 2013). Full-frame FE lenses work on APS-C bodies; APS-C E lenses work on full-frame bodies in crop mode.
Canon RF / RF-S
Full frame (RF) and APS-C (RF-S, from 2022). RF lenses work on RF-S bodies with a 1.6× crop; RF-S lenses work on full-frame bodies in crop mode.
Nikon Z
Full frame (FX) and APS-C (DX). The widest mount here, with the shortest flange distance, which gives lens designers lots of freedom.
Fujifilm X
APS-C. All X lenses are designed for APS-C, so they're compact for what they deliver.
L-Mount
Full frame and APS-C. Lumix S bodies, Leica SL bodies and Sigma fp cameras all share this mount.
Micro Four Thirds
Four Thirds (2× crop). Lenses are small and light for their reach, which suits travel and wildlife.
Canon EF / EF-S
Full frame (EF) and APS-C (EF-S). EF-S lenses only mount on APS-C EF bodies, not full-frame EF bodies.
Nikon F
Full frame (FX) and APS-C (DX). DX lenses work on FX bodies in crop mode. Older screw-drive AF-D lenses need a body with a focus motor.
Pentax K
Full frame and APS-C. The mount has stayed backwards-compatible for half a century.
Fujifilm G (GFX)
Medium format (43.8×32.9mm). GF lenses are large but cover a sensor about 1.7× the area of full frame.
Hasselblad XCD
Medium format (43.8×32.9mm). Most XCD lenses have built-in leaf shutters, so flash syncs at every shutter speed.
Leica M
Full frame (rangefinder). Seventy years of lenses still fit the latest M bodies.
Canon EF-M
APS-C only. Canon's first mirrorless mount. It was discontinued in 2023 in favour of RF-S, so bodies and lenses are cheap used but the system will not grow.
Sony A
Full frame and APS-C. Minolta's autofocus mount, continued by Sony in DSLRs and SLT cameras until the A99 II. It is now a legacy mount, but its lenses live on through E-mount adapters.