Nikon 20mm f2.8D is an Auto Focus (AF) Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Nikon F (FX) mount lenses.
Nikon 20mm f2.8D is compatible with cameras that have Nikon F (FX) lens mount.
Max sensor coverage of Nikon 20mm f2.8D is 35mm FF.
Nikon 20mm f2.8D has a fixed focal lenght of 20mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 20mm.
Nikon 20mm f2.8D has a max aperture of F2.8 and a minimum aperture of F22.0.