Sigma 40mm F1.4 DG HSM A is an Auto Focus (AF)
Standard Prime lens with 35mm FF max sensor coverage and it is designed to be used with Leica L mount cameras.
Lens Mount
Sigma 40mm F1.4 DG HSM A is compatible with cameras that have
Leica L lens mount. Some of the latest released cameras with Leica L lens mount are
Sigma fp L,
Leica SL2-S and
Panasonic S5.
Sensor Coverage
Max sensor coverage of Sigma 40mm F1.4 DG HSM A is
35mm FF.
Focal Range
Sigma 40mm F1.4 DG HSM A has a fixed focal lenght of 40mm.
Maximum Magnification Ratio
Sigma 40mm F1.4 DG HSM A has a Max Magnification Ratio of
0.15x and has a minimum focusing distance of
0.4m.
Aperture
Sigma 40mm F1.4 DG HSM A has a max aperture of F1.4 and a minimum aperture of F16.
Optical Formula
Sigma 40mm F1.4 DG HSM A's optical formula consists of 16 elements in 12 groups. Following special elements are used in this design: