Olympus OM 35-70mm f3.6 Zuiko MC Auto-Zoom
Rare zzom. The lens features a very reliable mechanical build, excellent optical performance, and reverse zooming - maximum retraction at the short end. The lens is quite sharp when wide open - the fastest 35-70 lens. Despite its rather heavy weight, the lens is rather compact. Focusing and zooming are not fully coordinated: when changing a focal length from 70 to 35 mm, sharpness remains unchanged (reverse action requires adjustment). The lens is multi-coated since its commercial launch.