A unique lens within the Leica lens line-up, the APO-Telyt-M 135mm f/3.4 is a telephoto prime characterized by both its long focal length and apochromatic design. The telephoto design delivers an attractive visual compression that pairs well with a sophisticated optical layout that minimizes distortion and light fall-off for clean and accurate reproductions. As an apochromat, virtually all color fringing and chromatic aberrations have also been eliminated for a high degree of clarity, contrast, and color fidelity.

Apochromatic design delivers high resolution and sharpness while also suppressing chromatic aberrations and color fringing for notable clarity and color accuracy. Distortion and light fall-off have also been reduced for clean and accurate image quality.

Manual focus design provides a minimum focusing distance of 4.9' with a maximum magnification ratio of 1:9.

Built-in telescoping lens hood can be used to reduce lens flare and ghosting when working in strong lighting conditions.