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NiSi Athena Prime 50mm T1.9 L-Mount Cine Lens
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| Lens mount | Leica L |
| Lens Format Coverage | Full Frame |
| Lens Design | Prime Lenses |
| Lens focus length, mm | 50 |
| Focus Type | Manual Focus |
| Image Stabilization | No |
| Lens type | CINEMA |
| Maximum Aperture | T1.9 |
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Versatile Focal Length Range
NiSi Athena Cine lenses offer a focal length range from 14 mm ultra-wide angle to 85 mm, covering both ultra-wide and portrait focal lengths. This versatility makes them ideal for various shooting scenarios and capturing a wide range of subjects.
Consistent T-Stop Aperture
These lenses feature T-stop values that measure the actual light transmission through the lens, ensuring consistent exposure across all focal lengths. The 25/35/50/85 mm lenses have a maximum aperture of T1.9, allowing for a soft bokeh effect and beautiful background separation. The 14 mm lens has a T2.4 aperture.
Large Image Circle
With an impressive image circle diameter of 46 mm, these lenses are suitable for use with full-frame and even large-format sensors.
Mount Compatibility and Optical Performance
The entire series is available in ARRI PL, Canon RF, Sony E, Panasonic/Leica L, and Fuji G mounts. They offer exceptionally low chromatic aberration and micro-contrast control, delivering unparalleled image quality with fine detail resolution.
Minimized Focus Breathing
Athena Prime lenses are designed to minimize focus breathing, meaning the field of view changes very little when adjusting focus from minimum focus distance to infinity, regardless of aperture setting.
Patented Rear Filter System
The Athena Prime series features a Drop-In filter mount system that provides greater flexibility and creative control for filmmakers. RF, L, and G mount lenses include the Drop-In filter option. E-mount lenses come in two versions (with and without Drop-In filter), while PL-mount lenses use a rear filter.
- Sony FX9 cameras cannot use E-mount lenses with Drop-In filters.
- To achieve infinity focus and sharp images, it is important to use a transparent Drop-In filter for RF, L, G, and E mounts, and a rear filter for PL mount.
NiSi also offers weather protection for the Drop-In filter.
Uniform Weight and Handling
All NiSi Athena Prime lenses have similar weight, allowing for easy lens changes without rebalancing the gimbal. They all share a 77 mm filter thread size. Aperture and focus rings are standardized across the range.
Focus Rotation and Markings
Each lens features a 300° focus rotation and fluorescent focus scales marked in both imperial and metric units for precise focusing.
Compatibility and Accessories
Designed with both optical performance and usability in mind, these lenses have standard 0.8 mod focus and aperture gears, making them compatible with a wide range of follow focus and matte box systems.
Additionally, a 77 mm close-up lens is available separately to reduce minimum focus distance and create excellent macro effects.
