By 20mm, the lens is almost perfectly rectilinear, measuring +0.10% pincushion. It is then pincushion all the way, with +1.47% at 28mm and +1.54% at 35mm. Traditionally, wide-angle lenses would ...
Sigma has launched two fast-aperture prime lenses for Canon mirrorless cameras ... while the 23mm lens has a 35mm equivalent focal length. Both lenses offer popular focal lengths with fast ...