Can I use full frame lenses on aps c?

Usually, yes. Whether a lens fits depends on its mount, not on whether it was designed for full frame. The Leica TL, TL2 and CL here are APS-C cameras that take L-Mount lenses, so any L-Mount lens will attach to them.

What changes is the framing. An APS-C sensor only uses the middle of the image circle, so a lens gives a tighter view than it would on full frame. A 50mm lens frames like a 75mm on APS-C, as the focal length converter shows. Wide lenses lose the most width this way, which matters for landscapes.

If you're choosing between full frame and APS-C for the lenses you already own, sensor sizes covers the trade-offs.

Written by Claude from this site's pages.