Carl Zeiss 21mm f2,8 Distagon ZE

The Carl Zeiss 21mm f/2.8 Distagon ZE is a full-frame ultra-wide prime for Canon EF-mount cameras, built on Zeiss's Distagon design to keep distortion controlled at this wide a focal length. Five low-dispersion elements work together to minimize chromatic aberration, delivering clean, sharp detail from corner to corner.

With an aperture range of f/2.8 to f/22, it's suited to everything from dim interiors and environmental scenes at wider apertures to expansive, deep-focus landscape and architectural work stopped down. Its all-metal manual-focus barrel gives smooth, precise focus travel, and Zeiss's coatings help control flare when shooting into bright light sources.