Overview

The Mamiya Sekor SX 28mm f/2.8 is a vintage M42 wide-angle lens known for its warm, characterful rendering and solid build, with a metal-and-glass construction that balances well on modern bodies. Optically, it offers impressive center sharpness wide open but softens towards the corners, with gentle roll-off and a moody look. It suits photographers who appreciate manual, intentional shooting and can be adapted to mirrorless systems, though condition and aperture pin compatibility are key when buying second-hand.