Overview

The Jupiter-37A (MC) 135mm f/3.5 is a compact, preset-aperture M42 lens praised for its portability (370g) and 12-blade aperture that yields circular bokeh. Optically, it delivers sharpness even wide open, though it lacks modern conveniences like autofocus. It suits enthusiasts seeking an affordable, all-metal vintage telephoto with character, but not those wanting lightweight plastic or auto modes.