SIGMA’s wide-angle lens for full-frame mirrorless cameras with L-Mount or Sony E-mount offers high quality at an affordable price. Despite the large F2 maximum aperture, it is compactly built. The lens belongs to SIGMA’s I series and is very solidly constructed – it features an aluminium barrel and the mount is sealed against dust and moisture. It also includes a traditional and practical aperture ring, which can be set to an automatic position, while special FLD and SLD glass elements and a super multi-layer coating ensure high image quality. Effective correction of sagittal coma ensures high sharpness even at the edges, which is extremely useful when taking pictures of the night sky.