Pentax D FA 645 55mm F2.8 is an Auto Focus (AF) Standard Prime lens with 645 max sensor coverage and it is designed to be used with Pentax 645AF2 mount lenses.
Pentax D FA 645 55mm F2.8 is compatible with cameras that have Pentax 645AF2 lens mount.
Max sensor coverage of Pentax D FA 645 55mm F2.8 is 645.
Pentax D FA 645 55mm F2.8 has a fixed focal lenght of 55mm. When mounted on a 645 format camera, it provides an 35mm (FF) equivalent of 42.9mm.
Pentax D FA 645 55mm F2.8 has a max aperture of F2.8 and a minimum aperture of F22.0.