Can I use adapted lenses on the pentax k 3 mark iii?

Yes. The K-3 Mark III uses the Pentax K mount, and older manual K lenses fit it directly, with no adapter needed.

The camera's full page lists a wide range of lenses that fit it, from ultra-wide zooms to long telephotos and macro lenses, so you can see what's available alongside any older glass you already own. The page doesn't cover lenses from other mounts, so I can't say anything about those here.

Written by Claude from this site's pages.