50mm · f/1.9
The Isco-Gottingen Westrocolor 50mm f/1.9 is a rare M42 lens with a metal body in plastic housing, noted for solid construction (MFlenses). It is extremely sharp from f/2.8, even at borders (MFlenses). Bokeh is interesting, similar to the Meyer Domiron 50mm f/2.0, though not quite as smooth. The lens is less common than the Westromat variant (MFlenses). It suits photographers seeking a sharp, characterful vintage normal lens for bokeh work, but may be overpriced due to rarity (MFlenses).