Viltrox Ultra Slim MC UV Filter - Lens Protection Made of B270 Glass

The Viltrox Ultra Slim MC UV Filter offers high transparency, absorbs UV rays, and reduces blue tones caused by UV, ensuring clarity and true color reproduction in images. Placing the filter on the lens effectively protects the front element from dust, scratches, and impacts — a replaceable layer that is much cheaper to replace than the lens itself.

B270 Ultra HD Optical Glass
The filter is made from professional grade B270 glass, with high hardness (9H) scratch resistance. Light transmission reaches 99.5%, with very low surface reflectivity of 0.3% — for clear images and faithful color rendering, without light loss or added flare.

18 Layers of Nano Coating
Both sides of the filter feature 18 layers of nano coating with multiple properties:

• Hydrophobic: water slides off the surface, easy to clean
• Anti-static: attracts less dust
• Oil-resistant: fingerprints wipe off easily
• Scratch-resistant: durable protection of the optical layer

Ultra-Slim CNC Aluminum Frame
The frame is made from aerospace-grade aluminum, precisely machined by CNC, and rust-resistant. With a thickness of only 3.2mm, its ultra-slim design can be used without issues on wide-angle lenses — with no vignetting (dark corners), even at wide focal lengths.

Specifications
Type: UV Protection Filter (MC - multi-coated)
Optical Glass: B270, Ultra HD
Hardness: 9H (scratch-resistant)
Coatings: 18 nano layers on both sides
Light Transmission: 99.5%
Reflectivity: 0.3%
Coating Properties: Hydrophobic, anti-static, oil-resistant, scratch-resistant
Frame: CNC aerospace-grade aluminum, 3.2mm (ultra-slim)

Available Diameters: 49, 52, 55, 62, 67, 72, 77, 82, 86, 95mm

How to Choose the Correct Diameter
The filter diameter must match the thread diameter of your lens. This value is marked on the lens or the cap, preceded by the symbol Ø (e.g., Ø67 means 67mm thread). Choose the filter variant with the same diameter.

Why Use a Protective UV Filter
The UV filter has a dual purpose: it filters ultraviolet rays (reducing atmospheric haze and blue tones, especially at high altitudes or near the sea) and, most importantly for modern digital cameras, it naturally protects the front element of the lens. A scratch or impact on the filter means replacing a cheap filter, not the entire lens. The filter remains permanently mounted as a protective layer.