Overview

The Mamiya/Sekor auto 28 mm f/2.8 is praised for exceptional sharpness, with one user claiming it surpasses Canon L lenses. However, the lens is prone to internal fungus, which can be cleaned with 70% alcohol if disassembled. Build is robust but manual focus only, suiting those willing to adapt it to modern DSLRs for landscape or studio work. It offers great value for the price of an adapter, but requires careful inspection for optical flaws.