Overview

The Spiratone 135mm f/1.8 Plura-Coat is a vintage manual-focus lens known for its fast aperture. Optically, it delivers good sharpness in the center but suffers from significant chromatic aberration and softness at the edges, especially wide open. Build quality is typical of its era: all-metal construction with a smooth focus ring, but the lens is heavy and lacks modern coatings. It suits photographers who enjoy classic rendering and don't mind manual operation, but it's not ideal for critical sharpness or low-light work without stopping down.