The Sigma High-Speed Prime 20mm T1.5 Cinema Lens with PL-Mount (/i) is an ultra-wide spherical prime that covers Full Frame sensors. Ultra-wide coverage takes in a full setting from a short distance, which suits establishing shots, tight interiors, and vehicle work where the camera cannot be moved back. A fast T1.5 aperture lets camera operators separate subjects from their backgrounds or get the most out of available lighting when filming in darker environments, and the lens closes to T16. It uses a PL-Mount with manual focus. Cooke /i metadata passes through the mount for post and VFX workflows. The focus barrel is available in either imperial or metric markings.
Key Features
Ultra-Wide Full Frame Coverage
The lens covers Full Frame sensors, projecting a 43.3 mm image circle. An ultra-wide field of view keeps interiors, vehicle mounts, and establishing shots workable from close in, where there is no room to move the camera back.
T1.5 Maximum Aperture
At T1.5 the lens separates subjects cleanly from their backgrounds and gets the most out of available lighting when filming in darker environments. It closes to T16.
Imperial or Metric Focus Scale
The lens ships with either an imperial or a metric focus barrel. The scale is fixed at purchase rather than switchable, so a rental order or a set build has to specify which one is needed.
Cooke /i Metadata
The lens reports focus distance, aperture, focal length, and serial number to the camera frame by frame. That metadata travels with the footage into post, where VFX can match a CG camera to the real one instead of measuring the set afterwards.
