Samyang's fast portrait prime for Fuji X — the 50mm f/1.2 for APS-C with extraordinary speed.
The Samyang 50mm f/1.2 AS UMC CS is a fast manual focus portrait prime for Fujifilm X mount. At 50mm on APS-C, it provides a 75mm equivalent — a classic portrait focal length. The f/1.2 aperture is extraordinarily fast for an APS-C lens, providing shallow depth of field that rivals full-frame f/1.8 rendering. Also sold as Rokinon.
Optical performance is good for the specification. Sharpness is soft at f/1.2 with a pleasant glow, improving significantly by f/2. The extreme aperture on APS-C creates attractive background separation for portraits. Bokeh is smooth. UMC coatings reduce flare. The 75mm equivalent with f/1.2 speed provides a compelling portrait combination on Fuji X.
Fujifilm X mount, manual focus only. Filter thread is 62mm. Weight is approximately 370 grams — moderate. Build quality is solid with a metal barrel. No autofocus or electronic communication. The CS designation confirms APS-C-only coverage. The focus ring is smooth with good throw for precise manual focusing at shallow depths of field.
Available at budget prices on the used market. Check smooth focus ring and clean optics. An excellent budget portrait lens for Fuji X shooters who enjoy manual focus. The f/1.2 speed on APS-C provides unique creative potential. The lack of AF limits practical use for fast-moving subjects. Best for deliberate, composed portrait sessions.