Overview

The Ensinor MC AUTO 135mm f/2.8 is a vintage M42-mount telephoto lens offering solid center sharpness and smooth bokeh with a gentle, vintage rendering. Its main weakness is softer corners and some chromatic aberration, but it is easy to adapt to modern mirrorless cameras via cheap M42 adapters. Build quality is typical of the era—all-metal but with a focus ring that can be stiff. It suits portrait, detail, and cinematic B-roll shooters seeking an affordable, characterful lens, though careful inspection of optics and aperture is advised when buying used.