An ultra wide angle, prime lens, the Samyang 12mm T2.2 NCS CS has been designed to work with MFT or APS-C cameras. VDSLR Samyang lenses are fitted with racks compatible with the Follow Focus system. This solution allows for effortless and accurate rotation of focus and aperture rings. The aperture ring is rotated smoothly and noiselessly. These modifications allow for extremely comfortable and effective control of focal plane and depth of field during filming.

Its optics comprise of 12 lens elements arranged in 10 groups. The model has been fitted with three ED lenses with a low dispersion factor, two aspherical lens elements, including one hybrid element. All lens elements have been covered with the highest-quality anti-reflective NCS coatings. The lens provides maximum angle of view equal to 98.9 degrees, while the minimum focusing distance is 0.2 meters. Brightness of the lens corresponds with the T-number of 2.2. To facilitate the reading on the focus and aperture scale, both these indexes are marked in a parallel position to the optical axis of the lens.