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 Canon EF mount cameras.
Sigma 40mm F1.4 DG HSM A is compatible with cameras that have Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Sigma 40mm F1.4 DG HSM A is also available in Nikon F (FX) , Sigma SA, Sony E and Leica L mounts.
Sigma 40mm F1.4 DG HSM A has a fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 64mm.
Sigma 40mm F1.4 DG HSM A is a weather sealed lens which provides an extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have an effective protection, you have to pair the Sigma 40mm F1.4 DG HSM A with a weather sealed camera body such as Canon 1D X III, Canon 6D MII and Canon 5D MIV.
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. 0.15x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
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:
Sigma 40mm F1.4 DG HSM A comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Popular Comparisons of Sigma 40mm F1.4 DG HSM A
Here is the eight most popular comparisons of Sigma 40mm F1.4 DG HSM A amongst Camera Decision readers.