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A 55mm round glass filter with a thin black metal frame and subtle coating reflections

B + W Filter Company

B + W 55mm Master 803M ND 0.9 3-Stop MRC Nano Neutral Density Filter

SKU CH-8GW1-CF0Y9

A 55 mm neutral density filter that cuts light by three stops for wider apertures or longer exposures, with multi-coated German glass that resists reflections

  • Enables wider apertures for shallow depth of field with 3-stop light reduction
  • Slower shutter speeds create smooth water and motion blur effects with 0.9 density
  • Multi-coated glass minimizes reflections and glare for crisp images
  • Suitable for analog and digital cameras offering versatile creative control
  • Precision German engineering with 55mm thread fits high-end lenses

55mm ND 0.9 3-Stop Filter

The B+W Master 803M is a 55mm neutral density filter that reduces light by three stops. It fits lenses with a 55mm thread and suits both analog and digital cameras. The filter uses precision-ground Schott glass with MRC Nano multi-coating on both sides. Photographers gain creative control over exposure without degrading optical quality.

For Long Exposure and Wide Aperture Work

This filter serves photographers who need slower shutter speeds for motion blur or wider apertures for shallow depth of field in bright conditions. Videographers benefit from maintaining cinematic shutter angles outdoors. Shooters requiring variable density adjustment or a stronger light reduction than three stops should consider other filter types.

55mm Thread Mount

The filter mounts directly onto any lens with a 55mm front thread. No adapter rings or step-up rings are included in the package. Verify the thread size marked on your lens barrel before purchase. The slim brass frame minimizes vignetting on wide-angle lenses.

Highlights

  • Enables wider apertures for shallow depth of field with 3-stop light reduction
  • Slower shutter speeds create smooth water and motion blur effects with 0.9 density
  • Multi-coated glass minimizes reflections and glare for crisp images
  • Suitable for analog and digital cameras offering versatile creative control
  • Precision German engineering with 55mm thread fits high-end lenses

Specifications

No published specifications for this item yet.

Questions about this item

What lens thread size do I need for this 55mm Master 803M ND filter?

This filter mounts on any lens with a 55mm front thread, which is marked on the lens barrel or in its specifications.

Will the 0.9 density ND 803M work with my older manual-focus lenses?

Yes, the filter is suitable for both analog and digital cameras, so it functions normally on legacy manual-focus glass.

How can I verify the multi-coated MRC Nano layer is performing after I fit the filter?

Check images for absent flare and neutral colour balance; the seven-layer coating on each side minimises reflections and keeps density pure.

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