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Capture high-quality images using a full-frame camera with an ARRI PL mount with this NiSi ATHENA PRIME 50mm T1.9 Full-Frame Lens. This lens features soft bokeh, micro-contrast control, and low chromatic aberration to highlight image details without distortion. It has a 46mm image circle, a T1.9 maximum aperture for deep depth of view and an increased area of focus, an 80mm front outside diameter, and minimal focus breathing.
Capture high-quality images using a full-frame camera with an ARRI PL mount with this NiSi ATHENA PRIME 50mm T1.9 Full-Frame Lens. This lens features soft bokeh, micro-contrast control, and low chromatic aberration to highlight image details without distortion. It has a 46mm image circle, a T1.9 maximum aperture for deep depth of view and an increased area of focus, an 80mm front outside diameter, and minimal focus breathing.
Rear Filter Mount
Designed with a rear screw-in filter mount.
Lets you place a filter between your camera sensor and lens body.
Saves the weight of a filter and frees up a space in a front matte box.
Cine-Style Capture
Produces soft, engaging bokeh.
300° ring rotation for precise focusing.
Standard 0.8 MOD focus and aperture rings for use with follow focus systems.
Fluorescent focus marks in both feet and meters.
NiSi ATHENA Prime Cine 50mm T1.9 Specs
Key Specs
Focal Length
50mm
Maximum Aperture
T1.9
Lens Mount
ARRI PL
Lens Format Coverage
Full-Frame (46 mm Image Circle)
Filter Thread
77 mm
Image Stabilization
No
Electronic Communication
No
Focal Length
50mm
Maximum Aperture
T1.9
Minimum Aperture
T22
Lens Mount
ARRI PL
Lens Format Coverage
Full-Frame (46 mm Image Circle)
Angle of View
Full Frame Horizontal: 40.1° Diagonal: 47.5°
Focus Scales
Metric, Imperial
Filter Thread
77 mm
Minimum Focus Distance
19.7" / 0.5 m
Aperture/Iris Blades
10
Image Stabilization
No
Gear Standard
0.8 MOD
Gear Rotation
Focus: 300°
Electronic Communication
No
Diameter
Front: 3.1" / 80 mm
Length
3.2" / 81.3 mm
Weight
28.2 oz / 800 g
Packaging Info
Package Weight
2.385 lb
Box Dimensions (LxWxH)
6.9 x 6.3 x 5"
NiSi ATHENA Prime Cine 50mm T1.9 Reviews
LOVE
By Matthew
Rated 5 out of 5
Date: 2025-10-06
For the price, these lenses are unbeatable. I absolutely love them. Great look, even wide open. Smooth action. Great build quality. My 85mm, mounted to a Canon c70, took a hard fall onto concrete on the last shoot. It's got a dent, but that bad boy is still rocking like nothing happened. Absolutely would recommend these gems to anyone looking for a fantastic, all around cine lens option.
Great versatile lens
By Dan
Rated 5 out of 5
Date: 2024-09-11
I got this NiSi lens with a few others to have in my kit for commercial and branded content work. The image is super clean and neutral which gives a lot of flexibility in the type of work I can do with it - whether corporate or something more artistic. Highly recommend for anyone looking for a versatile lens!
See any errors on this page?
What is the focus throw of this lens in degrees?
What is the focus throw of this lens in degrees?
Asked by: Jerry
The NiSi ATHENA PRIME 50mm T1.9 Full-Frame Lens (PL Mount) focus throw is 300 degrees, as listed in the key features section of the listings overview.
Answered by: Jonathan S
Date published: 2023-10-30
Will it be possible to change from PL mount to E ...
Will it be possible to change from PL mount to E mount if desired?
Asked by: Andrei
Yes, through a PL to E adapter like the DZOFilm Octopus Lens Adapter - PL to Sony E (BH #DZOADPLEBLK).
Answered by: Zacky
Date published: 2023-07-30
What options are available and recognized by NISI ...
What options are available and recognized by NISI to convert this from PL to EF-mount? Can it be converted to EF-mount?
Asked by: Justin
The NiSi ATHENA PRIME 50mm T1.9 Full-Frame Lens (PL Mount) cannot be converted to EF-mount. This lens is designed for PL and Mirrorless systems.
Answered by: Kenneth C
Date published: 2024-06-04
Is it possible to change the mount on an E mount ...
Is it possible to change the mount on an E mount lens to a PL mount? I have a Sony camera now, but in case I change cameras late
Asked by: Andrei
It is not possible. I would get the PL version and use an E-mount adapter if you want the most flexibility in the future.
Answered by: Zacky
Date published: 2023-08-20
What mm am I actually getting on the GFX with ...
What mm am I actually getting on the GFX with this 50mm Lens?
Asked by: Jimmy
When the NiSi ATHENA PRIME 50mm T1.9 Full-Frame Lens (FUJIFILM G) is used on the GFX medium Format system, the resulting 35mm equivalent focal length will be 40mm. (50x.79)
