Pentax DA 50-135mm F2.8 ED is an Auto Focus (AF) Telephoto Zoom
lens with APS-C / DX max sensor coverage and it is designed to be used with Pentax KAF2 mount cameras.
Pentax DA 50-135mm F2.8 ED is compatible with cameras that have Pentax KAF2 lens mount.Some of the latest released cameras with Pentax KAF2 lens mount are
Max sensor coverage of Pentax DA 50-135mm F2.8 ED is APS-C / DX.
Pentax DA 50-135mm F2.8 ED has a focal range of 50-135mm and 2.7X zoom ratio. When mounted on a APS-C / DX format camera, it provides an 35mm (FF) equivalent of 75 - 202.5mm.
Pentax DA 50-135mm F2.8 ED has a constant max aperture of f2.8 from 50mm all the way to the 135mm .