NiSi Cine Lens Athena Prime 25mm T1.9 L-Mount

The NiSi Athena Prime 25mm T1.9 is a fixed focal length cine lens with a Panasonic/Leica L-Mount. Its 46mm image circle supports full-frame and larger sensors, while the T1.9 maximum aperture allows background separation.

The optics provide low chromatic aberration and micro-contrast control. Focus breathing is minimised to limit changes in the field of view when focusing from the minimum distance to infinity. The T-stop rating describes actual light transmission for consistent exposure across the Athena range.

• Rear drop-in filter system with weather sealing. A clear drop-in filter must be used to achieve infinity focus and clear images.
• 77mm front filter thread.
• 300° focus rotation with fluorescent focus scales in imperial and metric units.
• Standard 0.8 module focus and iris gears, compatible with follow focus and matte box systems.
• Matched focus and aperture ring positions across the range and similar lens weights allow lens changes on a gimbal without rebalancing.
• Compatible with the separately sold NiSi 77mm close-up lens to reduce the minimum focusing distance for macro effects.