Benro

Benro UNND81010 Universal ND8 3-Stop Square Filter

Affordable Quality for Creative PhotographyThe Benro Universal Lens Filter ND8 (0.9) is a 3-stop neutral density filter designed for photographers seeking quality and affordability. Constructed with PMMA resin and advanced dyeing technology, this square filter ensures low color shift and superior...

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Overview

Affordable Quality for Creative Photography

The Benro Universal Lens Filter ND8 (0.9) is a 3-stop neutral density filter designed for photographers seeking quality and affordability. Constructed with PMMA resin and advanced dyeing technology, this square filter ensures low color shift and superior protection.

Specifications:

  • Type: Square Filter
  • Filter Type: ND8 (0.9)
  • Stop Reduction: 3-stop
  • Material: PMMA resin
  • Coating: WMC (Waterproof Multi-Coating)

Key Features

3-Stop Light Reduction – 0.9 density (ND8) reduces light by 3 stops, enabling longer shutter speeds or wider apertures for creative motion blur, shallow depth-of-field, or balanced exposure in bright conditions.

Resin Construction – Made from durable, lightweight optical resin for a cost-effective alternative to glass, offering solid density and even light attenuation while keeping overall system weight low.

Coated Surfaces – Each side of the filter is treated with resistance coating that repels water, oil, dust, and fingerprints — making cleaning easier and maintaining consistent clarity during outdoor or travel shoots.

Drop-In Format – 100×100 mm square size works with standard 100 mm filter holders and drop-in systems, giving flexible integration into existing filter kits and enabling stacking with other filters like GND or CPL.

Standard limited warranty is 3 years from the date of purchase for the original owner. If you register the product online, the warranty is extended by 2 additional years for a total of 5 years in applicable regions.

Creative Versatility – Ideal for landscape, coastal, architecture, and video work; allows photographers and videographers to smooth water, blur clouds, control exposure in daylight, and expand creative flexibility without expensive filters.

Specifications

Filter Type
Neutral Density (ND)
Density
0.9 (ND8)
Light Reduction
3 Stops
Construction Material
Optical Resin
Filter Shape
Square
Filter Size
100 × 100 mm
Coating
Resistance coating (water, oil, dust, fingerprints)
Warranty
3 years (standard), 5 years (with registration)

Pros & Cons

👍 Pros

  • Achieves a 3-stop light reduction (0.9 density, ND8), allowing for longer shutter speeds or wider apertures.
  • Enables creative motion blur, shallow depth-of-field effects, and balanced exposure in bright conditions.
  • Constructed from durable, lightweight optical resin, offering a cost-effective alternative to glass filters.
  • Features resistance coatings on both sides that repel water, oil, dust, and fingerprints for easier maintenance.
  • Utilizes a 100x100 mm square, drop-in format, ensuring flexible integration with standard 100 mm filter holders.
  • Comes with a standard limited warranty of 3 years, extendable to 5 years upon online registration.

👎 Cons

  • Being made of resin, it might be more susceptible to scratches than glass filters if not handled carefully.
  • The 100x100 mm square size requires a compatible 100 mm filter holder, which is not included with the filter.
  • The 3-stop reduction may not be sufficient for extremely bright conditions or very long exposure photography requiring higher ND values.
  • While coated, the effectiveness of repelling elements can diminish over time with heavy use.
  • Specific optical clarity or color neutrality ratings beyond "solid density and even light attenuation" are not provided.

Frequently Asked Questions

This Benro Universal ND8 filter provides a 3-stop light reduction, corresponding to a 0.9 density, allowing for control over exposure in bright conditions.
The filter is constructed from durable, lightweight optical resin, offering a robust and cost-effective alternative to glass filters while maintaining density.
Each side of the filter is treated with a resistance coating designed to repel water, oil, dust, and fingerprints, simplifying the cleaning process and preserving clarity.
This is a 100×100 mm square filter, designed to work seamlessly with standard 100 mm filter holders and drop-in systems for versatile integration.
It is ideal for landscape, coastal, architecture, and video work, enabling photographers and videographers to achieve effects like smoothed water or blurred clouds.