Overview

The Canon R 135mm f/2.5 is a vintage manual-focus lens with a fast f/2.5 aperture, offering smooth, characterful rendering ideal for portraits and low-light use. Its all-metal build is compact and durable. Optical weaknesses include susceptibility to flare due to single-layer S.C. coating. It suits photographers who enjoy manual focus and a classic look, especially on mirrorless bodies via adapters.