ARRI ARRICAM 20mm T1.9 LDS Ultra Prime Lens with PL-Mount (Feet Scale) K2.52125.0 Review

The ARRI 20mm T1.9 LDS Ultra Prime is a professional cinema lens built for high-end production work. Part of ARRI's Ultra Prime series, it features a PL mount, LDS (Lens Data System) metadata output, and feet markings, making it a natural fit for narrative and commercial cinematography on ARRI and RED systems. The fast T1.9 aperture offers strong low-light capability and shallow depth-of-field control, while the 20mm focal length provides a wide field of view useful for establishing shots, interiors, and environmental storytelling. This listing is for a used unit in excellent condition from KEH, priced under $5,000. Ultra Primes are known for warm, slightly vintage color rendering and smooth bokeh, though they lack the clinical sharpness and contrast of newer cinema glass. For DPs seeking a proven wide prime with metadata support at a lower entry point than current ARRI offerings, this lens delivers solid optical and mechanical performance.