The ARRI Signature Primes are a modern, ultra-high-end cine prime lens series designed by ARRI. They were developed to complement ARRI’s Large Format (LF) camera system, such as the ALEXA LF and Mini LF, though they are camera-independent and cover all image sensors up to a 46mm large format image circle. They are built with a unique LPL mount (Large Positive Lock), an open standard for large-format lenses. The lenses are renowned for their combination of high optical performance and a distinctively timeless, organic look that is flattering to skin tones.

Key Features:

Large Format (Full-Frame) Coverage: Covers image circles up to 46mm, maximizing the potential of large-format sensors for a distinct, immersive look.
Fast Maximum Aperture (T1.8): Most lenses in the series are T1.8, providing excellent low-light performance and achieving a very shallow depth of field.
Unique “Timeless” Look: Renders images with warm, smooth skin tones, open shadows, and exceptionally soft bokeh for a cinematic, non-clinical aesthetic.
Tuneable Rear Filter Holder: Features a magnetic rear filter holder for quick, tool-less customization (using nets, voile, etc.) of the lens’s flare and texture.
Minimal Aberrations: Engineered to have virtually no visible focus breathing or distortion, simplifying visual effects and complex focus pulls.
Lightweight and Robust Build: Constructed with magnesium alloy barrels, making them relatively light for large-format lenses, which is ideal for gimbal and handheld use.
Next-Gen Lens Data: Incorporates LDS-2 (Lens Data System) for high data rates and absolute encoders, which is crucial for modern virtual production and VFX workflows.