Buy the NiSi 9mm F2.8 APS-C – Ultra Wide for Smaller Sensors
On APS-C and Micro Four Thirds the really wide end is often missing, and nine millimetres closes exactly that gap. You get the angle of view for tight interiors, sweeping landscapes and handheld shots where you are in frame yourself. The fast maximum aperture helps at dusk and indoors without a tripod. Despite the extreme field of view, straight lines stay largely straight and the corners resolve properly right to the edge. Small enough to live in any bag. Buy yours today.