Overview

The Beriflex 135mm f/2.8 Auto is a fast telephoto prime for M42 mount. At f/2.8 it is soft, but sharpens by f/5.6 (MFlenses). Build is solid with a large focus ring, though handling is tricky due to size and weight. Colors are neutral with normal contrast; chromatic aberrations are present. It is a decent, honest lens for those needing a fast 135mm, but not a top performer (MFlenses).