20mm · f/2.8
The Minolta MD W.Rokkor 20mm f/2.8 is a solidly built manual focus lens from the 1980s, with metal construction and engraved markings. Optically, it is sharp in the center from f/2.8 but has soft midzones and corners wide open; corners improve by f/5.6, though midzones remain weak even at f/11. It shows significant vignetting even at f/11 and flares easily, though sun stars are nice. Bokeh is considered lousy. The lens is compact and lightweight, with a short focus throw. It suits users who value build quality and compactness for landscapes or interiors, but not those needing edge-to-edge sharpness or low vignetting.