28mm · f/2.8
The Sigma-XQ multi coat 28 mm f/2.8 is a compact, well-built manual focus lens with a metal barrel and smooth focusing. Optically, it offers good sharpness in the center but shows significant softness and chromatic aberration at the edges, especially wide open. It is best suited for photographers who value compactness and build quality over edge-to-edge sharpness, and who primarily shoot stopped down or in the center of the frame.