SLRs and mirrorless cameras take interchangeable lenses, but the fitting, or ‘lens mount’, varies from one brand to another, so can’t usually use one brand of lenses on another brand of camera. Independent third-party lens makers offer their lenses in two, three or more different lens mounts to fit different camera brands, but lenses made […]
Pentax K mount
The lens mount used by Pentax APS-C and full frame DSLRs. The physical fitting is that same as that used by Pentax SLRs from decades ago, but the autofocus, exposure control and electronics have moved on since then.