Overview

The Tamron 135mm f/2.8 Adaptall model CT-135 is a vintage manual-focus telephoto lens praised for its solid all-metal build and smooth focus/aperture rings. Optically, it delivers beautiful rendering, flattering compression, and smooth background blur, though wide open it is not at its sharpest; stopping down to f/2.8 yields very acceptable sharpness. It suits photographers who enjoy a slower, intentional shooting style for portraits, details, and compressed perspectives, and works well on modern mirrorless cameras with an adapter.