Pentax 16-45mm F4 ED AL is an Auto Focus (AF) Standard Zoom lens with APS-C / DX max sensor coverage and it is designed to be used with Pentax 645AF2 mount lenses.
Pentax 16-45mm F4 ED AL is compatible with cameras that have Pentax 645AF2 lens mount.
Max sensor coverage of Pentax 16-45mm F4 ED AL is APS-C / DX.
Pentax 16-45mm F4 ED AL has a focal range of 16-45mm and 2.8X zoom ratio. When mounted on a APS-C / DX format camera, it provides an 35mm (FF) equivalent of 24 - 67.5mm.
Pentax 16-45mm F4 ED AL has a constant max aperture of f4 from 16mm all the way to the 45mm .