Rokinon 12mm f/2.0 NCS CS Fuji X camera lens

Ultra-wide lens for Fuji X APS-C

The Rokinon 12mm f/2.0 NCS CS is a rectilinear ultra-wide prime built for Fujifilm X-mount mirrorless cameras with APS-C sensors. Its 98.9 degree angle of view and bright f/2.0 aperture suit landscape, architecture and low-light photographers who need a fast wide option. The optical design uses 12 elements in 10 groups including one aspherical, one hybrid aspherical and three ED glass elements to control distortion and chromatic aberration. It is designed for high-resolution sensors above 24 megapixels.

Replaces slower kit zooms at the wide end

Photographers moving up from variable-aperture kit zooms gain a constant f/2.0 maximum aperture and a wider 12mm focal length for tighter interiors and night skies. The jump is worth it when you need shallow depth of field at ultra-wide angles or cleaner files at lower ISOs in dim conditions. Buyers who need zoom flexibility or autofocus for fast action should look elsewhere as this is a manual-focus prime with a fixed focal length.

Manual focus with 67mm filter thread

Installation is a simple bayonet mount onto any Fujifilm X body with no electronic contacts to configure. The focus and aperture rings operate mechanically so there is no firmware compatibility risk. What usually goes wrong is forgetting to enable shoot without lens in the camera menu or misjudging focus distance on the unmarked scale at wide apertures. A 67mm filter thread accepts standard screw-in filters for protection or creative effects.