ARRI Signature Prime Lens 21mm / T1.8 Feet Scale

Cinematic Excellence with the ARRI Signature Prime 21mm T1.8

The ARRI Signature Prime 21mm T1.8 is a cornerstone of the large-format lens series, designed to deliver organic, emotionally engaging images. While providing state-of-the-art optical precision, this lens softens the digital edge, texturizing large-format sensors with natural skin tones and a creamy, non-distracting bokeh. The fast T1.8 aperture allows for exceptional low-light performance and a shallow depth of field that gives subjects a heightened presence in the frame.

Advanced Magnesium Construction and LDS-2 Technology

Engineered for the rigors of professional sets, the Signature Prime range features machined magnesium lens barrels. This makes the 21mm prime incredibly lightweight yet robust. It incorporates ARRI’s next-generation LDS-2 Lens Data System, featuring high data rates and absolute encoders for near-instant initialization, streamlining workflows for visual effects and camera assistants alike.

Universal LPL Mount Compatibility

Equipped with the LPL (Large Positive Locking) mount, the 21mm Signature Prime is optimized for large-format sensors. The wider diameter and shorter flange focal depth enable a compact design and superior optical performance that traditional PL mounts cannot achieve. This lens is fully compatible with the ALEXA 65, ALEXA LF, ALEXA Mini LF, and the ALEXA 35, as well as third-party cameras via LPL adapters.