The NiSi Aureus Prime 50mm T1.4 Full Frame Cinema Lens (PL Mount) delivers a natural, classic perspective ideal for portraits, interviews, and medium shots. Designed for full-frame cameras, it combines sharp image capture with smooth bokeh, minimal focus breathing, and precision manual control—making it a dependable lens for professional film productions.

Classic 50mm Perspective

The 50mm focal length offers a familiar field of view that mimics human vision, making it an ideal choice for character-driven narratives, interviews, and medium shots. Its natural framing keeps subjects grounded and emotionally relatable.

Fast T1.4 Aperture

With a wide T1.4 maximum aperture, this lens excels in low-light environments and allows for precise subject isolation. The 11-blade iris creates smooth, cinematic background blur, useful for drawing viewer focus and adding visual depth.

High-Performance Optical Design

The advanced optical construction minimises chromatic aberration and distortion, while multi-layer coatings improve contrast and colour fidelity. This ensures crisp results even at wide apertures or in complex lighting conditions.

Zero Focus Breathing & Extended Focus Rotation

The lens exhibits virtually no focus breathing, keeping your frame steady during focus pulls. A 300° focus throw supports precise manual control, useful for nuanced transitions across subjects in scene work.

Compact, Durable Build

Constructed from robust metal and weighing 1.3 kg, the lens offers strength without excess bulk. Its consistent 90 mm front diameter and 86 mm filter thread make it compatible with standard accessories and matte boxes.

Integrated Rear Filter Slot

Allows ND or diffusion filters to be mounted internally, avoiding extra front-mounted glass that may complicate small-rig setups or gimbal balancing.

Designed for Workflow Efficiency

Glow-in-the-dark markings and swappable focus scales (feet/metres) enhance usability on set. Gear positions are standardised across the Aureus Prime range for fast lens swaps without refitting accessories.

Visual Consistency Across Lenses

This 50mm matches the colour and optical characteristics of other lenses in the Aureus and Athena Prime series—minimising post-production grading adjustments and ensuring a uniform cinematic look across focal lengths.