Lens adapter compatibility

Canon EF-S lenses on Canon EF cameras

Can you use Canon EF-S lenses on Canon EF cameras? Not with a simple adapter — infinity focus is lost. The Canon EF-S flange distance is 44.00 mm and Canon EF is 44.00 mm, a difference of +0.00 mm.

+0.00 mm
Space for the adapter
44.00 mm
Canon EF-S flange
44.00 mm
Canon EF flange
Verdict: No — EF-S lenses physically protrude into the mirror box of full-frame EF bodies.

What to expect#

Image circle: Canon EF-S lenses are designed for a smaller sensor (≈1.6× crop), so expect heavy vignetting on a full-frame Canon EF body unless you use its crop mode.

Adapters with an optical element exist for some combinations, but they reduce image quality. A glass-free adapter in this direction only works for macro/close focus.

Canon EF-S lenses you could adapt#

Canon EF cameras#

Other systems for Canon EF-S lenses#

Sony E-mountCanon RFNikon ZFujifilm X-mountMicro Four ThirdsL-MountCanon EF-MFujifilm G-mountHasselblad XCDNikon 1 (CX)

Frequently asked questions#

Will Canon EF-S lenses autofocus on Canon EF?

This adapter direction is not practical.

Does a Canon EF-S to Canon EF adapter affect image quality?

Any adapter that restores infinity focus here needs a corrective lens, which typically lowers sharpness and adds a slight teleconverter effect.

Last updated October 03, 2026 · How we calculate · Sources