GOI f. M42 3.2/150mm Telephoto Lens *

A very interesting and unique lens – an unnamed GOI prototype, presumably manufactured around 1950–1955. It can be regarded as a precursor to the well-known Tair-56 150 mm f/3.5, which entered small-series production at KMZ in the late 1950s and was offered in our 45th auction.

The presented prototype is particularly notable for its faster aperture of f/3.2, demonstrating the attempt to achieve higher light-gathering power. It is fitted with an M42 mount and remains in excellent condition, with smooth focusing and very good, coated optics. A remarkable piece of Soviet optical history.