Overview

The Carenar 55mm f/2.8 is a normal prime M42 lens, likely a triplet design with front-cell focusing (Mos6502). Optical quality is not well-documented, as users report limited use (mo). Build issues include a short aperture pin that prevents full stopping down on some bodies (Mos6502). It was sold under multiple brands (Cosinon, Petri, Rikenon) and is considered basic in construction (Mos6502). Suitable for collectors or those seeking a compact, inexpensive normal lens, but not for critical image quality.