Unattributed Lenses

Not established · 2 lenses

Unattributed is a catalog category, not a manufacturing company. An inventor, design-family name or patent owner does not by itself identify the factory that produced a lens. These models retain their source-backed names and inventor attribution while their manufacturer remains unconfirmed. The individual lens notes explain the evidence and any product correlation.

RUSSAR-21 60mm f/18— 6 ELEMENTS / 4 GROUPS, f = 59.426 mm, F/17.929RUSSAR-22 70mm f/8— 6 ELEMENTS / 4 GROUPS, f = 69.883 mm, f/8