When it comes to protective filters, there is always the risk of placing an unwanted optical element between the world and your camera sensor. The NiSi Air series was created to eliminate this concern, offering such exceptional transparency that the filters are virtually invisible.
Within the Air family, there are two products: the NiSi UV Air ULRC and the NiSi Air Protector 8K. Although both represent the highest level of quality, their technical characteristics make them better suited to different needs. Let’s find out which one is right for you.
The Shared DNA: Quality Without Compromise
Before looking at the differences, it is important to understand what makes the NiSi Air series stand out from the competition:
- Clear White Glass: Unlike standard filters that can introduce a green or yellow colour cast, NiSi uses exceptionally pure optical glass for perfect colour neutrality.
- Minimal Reflections: Both filters are designed to dramatically reduce flare and ghosting.
- Nano Coating: An advanced coating makes the surface water-repellent and oil-resistant. Water and fingerprints can be cleaned away with a single wipe.
- Ultra-lightweight, slim frame: Designed to minimise vignetting and bulk.
1.NiSi UV Air ULRC: Pushing Technology to the Limit
The NiSi UV Air ULRC is not simply a protective filter; it is also an optical optimisation tool. It has been designed to work flawlessly with ultra-high-resolution sensors, including those exceeding 100MP.

Graph showing the UV cut below 395nm.
Its key strengths:
- 99.9% light transmission: Representing the limits of current optical technology, light passes through almost entirely, with no noticeable loss.
- UV cut below 395nm: Unlike other filters, the ULRC blocks ultraviolet light below 395nm. This helps deliver exceptionally sharp images by reducing the effects of atmospheric haze.

Graph showing the light transmission of almost 100%.
2.NiSi Air Protector 8K: Protection Without Compromise
The NiSi Air Protector 8K was created with one specific mission: maximum protection. It is a pure protector, a neutral piece of optical glass that does not alter the UV spectrum of incoming light while offering superior physical protection.

Its key strengths:
- Impact resistance: Thanks to a specialised manufacturing process, the Air Protector 8K is highly robust and ideal for demanding shooting environments.
- 8K optimisation: Its exceptional glass flatness ensures that it does not degrade 8K video footage or high-resolution photographs.
- 99.8% light transmission: An incredibly high value that makes it a reliable and optically transparent companion for your lens.
Comparison Table: NiSi UV Air ULRC vs Air Protector 8K
| Feature | NiSi UV Air ULRC | NiSi Air Protector 8K |
|---|---|---|
| Main Function | UV filter + protection | Pure protection |
| UV Filtration | Cuts below 395nm for sharper images | No UV cut; completely neutral transmission |
| Light Transmission | 99.9% | 99,8% |
| Resolution | Optimised for ultra-high-resolution cameras | 8K certified |
| Physical Resistance | High | Excellent / superior |
| Reflections | Minimal, thanks to Clear White glass | Minimal, thanks to Clear White glass |
Which One Should You Choose?
The choice depends on your shooting style:
- Choose the NiSi UV Air ULRC if: You are looking for the absolute highest level of optical performance. You want maximum light transmission 99.9% along with UV filtration designed to help improve image clarity.
- Choose the NiSi Air Protector 8K if: You work in situations where your lens is at a greater risk of impacts and want superior physical protection without altering the UV spectrum or the characteristics of the incoming light.
In both cases, you are placing a piece of glass in front of your lens that makes no compromises when it comes to image quality.





