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72mm ultra-low reflection UV filter, slim 3.8mm frame, B270 glass, 99.6% transmission

7artisans

7artisans 72mm ULR UV Filter

SKU CH-2HSS-RX9P7

A 72 mm UV filter using B270 optical glass with 99.6 % light transmittance and 0.1 % reflectivity in a 3.8 mm frame that prevents vignetting

  • B270 optical glass delivers superior clarity and durability
  • 6% light transmittance produces bright, crisp images
  • 1% reflectivity minimises reflections for accurate photos
  • 8mm thin frame prevents vignetting on wide angles
  • Multi-layer nano coating resists scratches, water, oil and mildew

72mm UV Filter for Lens Protection

This 72mm filter uses B270 optical glass to shield the front element of compatible lenses. Light transmittance reaches 99.6% while reflectivity stays as low as 0.1%. The design targets photographers who want maximum clarity and minimal flare during everyday shooting.

Practical Limits of Screw-In Filters

A 3.8mm thin frame reduces the chance of vignetting on wide-angle lenses. The filter threads onto the 72mm diameter only; it cannot adapt to other thread sizes without a separate step-up or step-down ring. Double-sided waterproof and oil-proof coatings simplify cleaning but do not eliminate the need for careful handling.

99.6% Light Transmittance Specification

The single figure that decides fit is the 99.6% light transmittance paired with 0.1% reflectivity. Buyers who need stronger UV absorption for high-altitude or scientific work may require a dedicated absorption filter instead. This model prioritises optical purity over heavy UV blocking.

Highlights

  • B270 optical glass delivers superior clarity and durability
  • 6% light transmittance produces bright, crisp images
  • 1% reflectivity minimises reflections for accurate photos
  • 8mm thin frame prevents vignetting on wide angles
  • Multi-layer nano coating resists scratches, water, oil and mildew

Specifications

No published specifications for this item yet.

Questions about this item

Is the 72mm size the right choice for my lens?

The filter has a 72mm thread diameter, so it fits any lens with a matching 72mm filter thread.

What does 99.6% light transmittance mean for my images?

Over 99.6% of incoming light passes through the B270 glass, keeping exposures bright and colours accurate without noticeable dimming.

How low is 0.1% reflectivity in practice?

Reflectivity as low as 0.1% cuts ghosting and flare to a minimum, even when shooting toward strong light sources.

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