Rokinon's professional cinema prime — 50mm T1.5 for PL-mount with cine gearing and full-frame coverage.
The Rokinon XEEN 50mm T1.5 is a cinema prime for PL-mount cameras, designed for professional film and broadcast production. T1.5 aperture (transmitted light measurement). No standard screw-in filter thread — the 114mm front diameter requires a matte box for filter use. At approximately 1,160g. Eleven clickless iris blades. 0.46m MFD. The XEEN series is available as a matched set of primes with consistent gear positions.
The optical design uses 9 elements in 6 groups. Eleven iris blades (clickless for smooth iris pulls). No screw-in filter thread — 114mm front diameter requires matte box attachment. Approximately 1,160g. Minimum focus distance of 0.46m. Clickless iris for smooth pull-through aperture adjustments. 0.8M gear pitch on all rings. T1.5 maximum aperture. PL mount.
Cinema prime design characteristics: the clickless iris enables smooth exposure transitions during recording without audible clicks; the 0.8M gear pitch is the industry standard for follow-focus and matte box compatibility; the consistent gear position across the XEEN set (24mm through 135mm) enables quick lens changes with pre-set follow-focus without re-marking. The 114mm front requires a corresponding sized matte box ring.
On the used market the Rokinon XEEN 50mm T1.5 PL is available at professional cinema prime pricing. Condition checks: iris ring smoothness (clickless), 0.8M gear ring condition, front element for marks, and PL mount seating. No screw-in filter thread — requires matte box for filter use. PL mount; compatible with cinema cameras accepting PL mount lenses.