Pentax D-FA 100mm F2.8 Macro is an Auto Focus (AF) Macro Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount lenses.
Lens Mount
Pentax D-FA 100mm F2.8 Macro is compatible with cameras that have Pentax KAF lens mount.
Sensor Coverage
Max sensor coverage of Pentax D-FA 100mm F2.8 Macro is 35mm FF.
Focal Range
Pentax D-FA 100mm F2.8 Macro has a fixed focal lenght of 100mm. When mounted on a 35mm FF format camera, it provides an 50mm equivalent of 100mm.
Aperture
Pentax D-FA 100mm F2.8 Macro has a max aperture of F2.8 and a minimum aperture of F32.0.