NiSi Athena Prime 40mm T1.9 (RF-Mount)

Professional Full-Frame Performance

The NiSi Athena Prime 40mm T1.9 (RF-Mount) is engineered for cinematographers who demand exceptional image quality and mechanical consistency. This 40mm focal length provides a natural perspective, bridging the gap between wide-angle and portrait lenses, making it an essential tool for narrative filmmaking and commercial production.

Superior Optical Design

Each lens in the Athena series is designed with maximal micro-contrast control and ultra-low chromatic aberration. This ensures that fine details are preserved, delivering unparalleled image quality suitable for 8K productions. The fast T1.9 aperture produces a soft, pleasing bokeh that creates beautiful background separation and depth.

Seamless Workflow Integration

The NiSi Athena Prime lenses are matched in weight and size, eliminating the need for rebalancing on gimbals or drones when switching focal lengths. The standardized 77mm filter thread and consistent gear positions for aperture and focus rings allow for rapid accessory changes. The focus ring offers 300 degrees of rotation with fluorescent scales, enabling precise focus pulls even in dark environments.

Advanced Cinema Features

• Minimal Focus Breathing: Changes in the field of view are virtually non-existent when adjusting focus.
• Drop-in Filter Mount: Provides a flexible workflow for adding ND or creative filters behind the lens.
• Full-Frame Coverage: A 46mm imaging circle covers modern full-frame and large-format sensors.