Sigma 28mm F1.4 DG HSM A 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 cameras.
Lenses in Nikon F (FX) Mount with Same Focal and Aperture Range
Sigma 28mm F1.4 DG HSM A is compatible with cameras that have Nikon F (FX)
lens mount. Some of the latest released cameras with Nikon F (FX) lens mount are
Max sensor coverage of Sigma 28mm F1.4 DG HSM A is 35mm FF
Sigma 28mm F1.4 DG HSM A has a fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42mm.
Maximum Magnification Ratio
Sigma 28mm F1.4 DG HSM A has a Max Magnification Ratio of 0.19x
and has a minimum focusing distance of 0.28m
Sigma 28mm F1.4 DG HSM A has a max aperture of F1.4 and a minimum aperture of F16.
Sigma 28mm F1.4 DG HSM A's optical formula consists of 17 elements in 12 groups. Following special elements are used in this design:
- Three SLD
- two FLD elements