Overview

The Revuenon Zoom 70-220mm f/4 is a vintage M42-mount lens made by Cosina for Quelle in the 1970s. It shows mild vignetting at 70mm and is relatively soft at 220mm, performing best at intermediate focal lengths. Sharpness and contrast are mediocre even at f/4, requiring stopping down for better results, but this limits low-light use (commenter). Build is bulky and unwieldy, with a tripod collar included; it often comes with a hood and case. Suitable for budget-conscious analog shooters seeking a cheap telephoto zoom, but its handling and optical compromises make it a niche choice.