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 Sigma SA mount cameras.
Sigma 40mm F1.4 DG HSM A is compatible with cameras that have Sigma SA
lens mount. Some of the latest released cameras with Sigma SA lens mount are Sigma Quattro
, Sigma Quattro H
and Sigma SD1 Merrill
Max sensor coverage of Sigma 40mm F1.4 DG HSM A is 35mm FF
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
Sigma 40mm F1.4 DG HSM A has a max aperture of F1.4 and a minimum aperture of F16.
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: