Protection without a heavy optical tradeoff
The Armor FX PRO pairs a slim brass frame with CINE optical glass and a double-sided Nano coating, giving a 55 mm lens a protective filter with specified 99% transmittance and a surface made for regular cleaning.
- Filter Size 55 mm
- Transmittance 99%

Product Highlights
- 55 mm screw-in UV protection filter with UV filtration below 395 nm
- CINE optical glass specified for neutral color and maintained sharpness
- Double-sided low-reflection multi Nano coating with 99% transmittance
- Waterproof, oil-proof, easy-to-clean coated surface
- Ultra-slim 6.5 mm two-tone brass frame with knurling and front filter thread
- Designed to avoid vignetting on wide-angle lenses, including at 14 mm
Product Information
The NiSi 55mm Armor FX PRO Nano L395 UV Protection Filter is a 55 mm screw-in filter designed to protect a lens while filtering ultraviolet light below 395 nm. Its CINE optical glass and double-sided low-reflection Nano coating are specified for 99% transmittance, neutral color, and maintained sharpness.
Built for everyday lens protection
The ultra-slim 6.5 mm two-tone brass frame has knurling for grip and a front filter thread. NiSi states that the design resists impacts that can shatter a conventional UV filter and helps protect against dust, fingerprints, dirt, scratches, sand, and seawater spray.
Coated optical glass
Double-sided high-precision polishing and multi Nano coatings support clear imaging while providing a waterproof, oil-proof, easy-to-clean surface. The frame is designed to avoid vignetting on wide-angle lenses, including at 14 mm.
-
NiSi 55mm Armor FX PRO Nano L395 UV Protection Filter
| Filter | |
|---|---|
| Filter Size | 55 mm |
| Filter Type | UV protection filter |
| UV Filtration | Absorbs ultraviolet light below 395 nm |
| Optical Glass | CINE optical glass |
| Transmittance | 99% |
| Construction | |
|---|---|
| Frame | Ultra-slim 6.5 mm two-tone brass frame with knurling |
| Front Thread | Yes |
| Coating | Double-sided low-reflection multi Nano coating |
| Surface | Waterproof, oil-proof, and easy to clean |
| Wide-Angle Use | Designed to avoid vignetting on wide-angle lenses, including at 14 mm |
| Identifiers | |
|---|---|
| USA SKU | NIR-AFXUV-55 |
| Manufacturer SKU | N-985648 |
| UPC | 6972949378080 |








