Can I use full frame canon rf lenses on aps c?

The site doesn't say directly whether a full-frame RF lens is meant for an APS-C body, so check the lens's own specifications before you buy. What it does cover is the Canon RF mount, which fits full-frame bodies and the APS-C ones whose lenses are labelled RF-S.

On Canon, APS-C has a 1.6x crop factor, so a full-frame lens shows a tighter slice of the scene than it would on a full-frame body. Sensor sizes explains how that changes the focal length you actually get.

Written by Claude from this site's pages.