(none) 135mm F/2.8 Auto M42 Screw Mount Manual Focus Lens Review

This is a legacy 135mm f/2.8 manual focus lens with M42 screw mount, sold as a used item in excellent-plus condition. At $18, it represents one of the most affordable entry points into classic portrait telephoto focal lengths. The M42 mount was a universal standard in the 1960s and 1970s, making these lenses adaptable to modern mirrorless cameras with inexpensive adapters.

A 135mm focal length sits in the traditional portrait telephoto range, offering flattering compression and subject isolation when paired with the f/2.8 maximum aperture. Manual focus and aperture control are the norm for vintage glass like this, so shooters should expect a deliberate, hands-on shooting experience. Build quality and optical character will vary depending on the original manufacturer (Vivitar, Soligor, Pentax, and others produced similar designs). As a used item from KEH, the lens has been graded and carries their warranty, which adds some reassurance when buying decades-old optics.