Overview

The Leica APO-Telyt-M 135mm f/3.4 ASPH is a compact, well-built telephoto lens with excellent resolution and contrast, especially when stopped down. Its main weaknesses are flare and veiling glare from stray light, inadequately controlled by the short hood. The focus ring is smooth but relatively short, making fine adjustments less precise. It suits rangefinder users who prioritize optical quality and can manage manual focus at this focal length, though the high price may deter some.