The Zeiss Sonnar 135mm f/2.8 T* (Contax) is a manual medium-telephoto lens known for its sharp rendering, natural compression, and smooth background blur. The f/2.8 aperture makes it ideal for portraits and distant details, while its solid construction and T* anti-reflective coating ensure clean images with accurate colors and strong contrast. Compatible with Contax/Yashica cameras, it’s a top choice for optical quality in a compact form.