NiSi Athena Prime 50mm T1.9 (RF-Mount)

Professional Full-Frame Cinema Performance

The NiSi Athena Prime 50mm T1.9 (RF-Mount) is a high-performance cinema lens designed for full-frame sensors with a 46mm imaging circle. This standard focal length provides a natural perspective, making it an essential tool for narrative filmmaking, documentaries, and commercial productions.

Superior Optical Design

Engineered for maximum micro-contrast control and ultra-low chromatic aberration, the Athena Prime series delivers unparalleled image clarity. The fast T1.9 aperture ensures exceptional low-light performance and creates a soft, pleasing bokeh that beautifully separates subjects from the background.

Consistent Workflow and Handling

Every lens in the Athena Prime lineup is matched in weight and size. This allows for rapid lens changes without the need to rebalance gimbals or reposition follow focus motors. The 50mm features a 77mm filter thread and standardized gear positions across the range, ensuring compatibility with your existing matte boxes and accessories.

• Minimized Focus Breathing: Maintains a consistent field of view during focus pulls regardless of distance.
• Precise Control: 300-degree focus rotation with fluorescent focal scales for accurate operation in low light.
• Drop-in Filter Slot: Integrated mount for flexible creative control using rear-mounted filters.