Overview

The Mamiya-Sekor Fish-Eye SX 14 mm f/3.5 Auto is a manual focus lens offering an extreme 180° diagonal angle of view with equidistant projection. It produces huge barrel distortion and has very large depth of field, making precise focusing unnecessary. The convex front element prevents filter use, but a built-in filter turret and petal hood are included. Build quality is typical of Mamiya SX series; some users modify the aperture ring for easier mounting. It suits photographers seeking an ultra-wide fisheye effect on a budget, though corner sharpness may be limited on full frame.