Overview

The Samyang/Rokinon 12mm f/2.0 NCS CS is a compact, lightweight ultra-wide manual lens for APS-C mirrorless cameras, praised for its fast aperture and sharpness, especially for astrophotography. Optical strengths include good center sharpness even wide open, with corner softness and vignetting at f/2 that improve by f/4–f/5.6. Chromatic aberration and barrel distortion are mild and correctable. Build quality is solid plastic with a metal mount, though the focus ring can be stiff and infinity focus may require adjustment. It suits landscape, interior, and astrophotography enthusiasts who don't mind manual operation and want excellent value.