Overview

The Mamiya Sekor SX 55mm f/1.4 Auto is a well-regarded vintage standard lens, praised for its solid metal build and smooth focusing. Optically, it exhibits strong spherical aberrations wide open, yielding a dreamy look, but becomes very sharp when stopped down. Its thoriated glass may yellow over time, adding warmth. The lens is considered a hidden gem, offering rendering comparable to pricier Zeiss lenses. It suits photographers seeking character and vintage feel, though prices have risen.