NiSi 50mm Aureus Prime Full Frame T1.4 Cinema Lens with Virtually Zero Focus Breathing (PL Mount)
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The NiSi Aureus Prime 50mm T1.4 Full Frame PL Mount Cinema Lens offers a timeless perspective with an image character that feels both intimate and natural. Perfect for dialogue, portraits, and medium shots, the 50mm is the quintessential 'standard' lens—and a staple in any cinematographer’s toolkit. Covering a 46mm image circle and optimized for full-frame cinema cameras, the 50mm provides sharp, clean imagery with a cinematic look that’s versatile for narrative, commercial, and documentary applications.
Classic 50mm Focal Length for Natural Framing
A versatile mid-range lens perfect for portraits, close-ups, and general-use scenes, the 50mm offers a lifelike perspective ideal for character-driven narratives and interviews.
Fast T1.4 Aperture for Stunning Low-Light Performance
The bright aperture provides beautiful background separation and soft, cinematic bokeh, even in low-light environments or at night.
Full-Frame Coverage with a 46mm Image Circle
Maintains sharpness and contrast across the entire frame, supporting modern full-frame cinema cameras without vignetting.
Virtually Zero Focus Breathing
Maintains consistent composition throughout focus pulls, giving filmmakers precise creative control in every shot.
Superior Optical Design for Minimal Chromatic Aberration
Features advanced optics that correct aberrations and maintain clarity and color consistency from edge to edge—even wide open at T1.4.
300-Degree Focus Rotation for Precision Control
Offers extended manual focus rotation for accurate, deliberate pulls, supporting both narrative and documentary work.
Reliable Build and Streamlined Form Factor
Despite its robust, all-metal construction, the 50mm weighs only 1300g and features a compact design - suitable for all types of setups, from cinema rigs to lightweight handheld gimbals. The front diameter is a consistent 90mm, and it includes an 86mm filter thread, ensuring seamless compatibility with accessories and matte boxes. The integrated rear filter slot allows filmmakers to fine-tune their image with ND or diffusion filters without bulky front-mounted glass.
Versatile PL Mount Compatibility
Easily integrates with all PL-mount systems and adapters - including drop-in filter variants - for full professional compatibility.
Neutral and Accurate Color Reproduction
Delivers cinematic, true-to-life colors and tonal consistency that holds up across varying lighting conditions and scene changes.
Mirrorless Rear Filter System for Creative Flexibility
Rear filter support gives filmmakers control over image shaping without requiring bulky front filter systems.
Mirrorless Focus Scale (Feet or Meters) for Versatile Use
Features glow-in-the-dark markings and tool-free scale swapping for international productions and flexible setups.
Optimized for Seamless Integration with Aureus and Athena Primes
Designed for full optical compatibility across the NiSi Prime lens ecosystem, maintaining a unified cinematic look.
Ready for Any Set, Any Scene
With glow-in-the-dark markings for easy visibility, swappable focus scales (feet/meters), and matched gear positions across the lens set, the 50mm is designed to keep productions moving quickly and efficiently.
Consistent Across the Series
Color-matched and optically harmonized with the entire Aureus Prime and Athena Prime series, the 50mm ensures consistency across every focal length—making it easy to maintain a coherent visual tone and match footage in post-production.
The Foundation of Any Prime Kit
The NiSi Aureus Prime 50mm T1.4 is a must-have lens for filmmakers seeking classic perspective, outstanding sharpness, and true cinematic feel. It’s the perfect blend of reliability, creativity, and performance.
Focus
| Minimum Aperture | T22 |
| Focal Length | 50mm |
| Angle of view | Full Frame Diagonal: 46.3°, Horizontal: 37.7°, Vertical: 28.7° |
| Minimum Focus Distance | 1.80' / 0.55 m |
| Diaphragm Blades | 11 |
| Fixed Focal Length amz | 50mm |
| Lens Format | Full Frame Sensors |
| Lens Type amz | Prime Lens |
| Special Designs | Soft Focus |
Mount
| Lens Mount | Arri PL |
Physical
| Weight | 2.87 lbs. |
| Color | Black |
| Lens Coating | SMC (Super Multi Coated) |
- Focus: 0.8 MOD / 32 pitch
NiSi 50mm Aureus Prime Full Frame T1.4 Cinema Lens with Virtually Zero Focus Breathing
| Lens Mount | PL mount |
| Maximum Aperture | T1.4 |
| Minimum Aperture | T22 |
| Imaging Circle | 46mm |
| Gear MOD and Pitch | |
| Close Focus | 21.6-inch (0.55m) |
| Focus Rotation Angle | 300-degree |
| Angle of View for 36x24 Format (Diagonal) | 46.3-degree |
| Angle of View for 36x24 Format (Horizontal) | 37.7-degree |
| Angle of View for 36x24 Format (Vertical) | 28.7-degree |
| Filter Size | 86mm |
| Front Diameter | 90mm |
| Dimensions | 90mm x 110mm |
| Weight | 2.87lb (1300g) |
| Aureus Cinema Lens | 50mm |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.




