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Schneider 4x4 inch ND 0.9 soft-edge graduated glass filter, rectangular, clear optical glass with neutral gray graduation

SCHNEIDER

Schneider 4x4" ND 0.9 Soft Edge Graduated Glass Filter

SKU CH-BR4N-TVRTX

A 4x4 inch neutral density graduated glass filter with a .9 density and soft edge transition for balanced exposure control

  • Neutral grey density preserves true colours across lighting changes
  • Soft-edge graduation blends exposure smoothly between bright and dark areas
  • Diamond-cut water-white glass ground to precise flatness and plane-parallelism
  • Laser interferometer verification ensures consistent parallelism on every filter
  • Densitometer and spectrophotometer testing guarantees repeatable density and transmission

4x4" ND 0.9 Soft-Edge Graduated Filter

The Schneider 4x4" ND 0.9 Soft Edge Graduated Glass Filter provides precise exposure control for photographers and cinematographers. It reduces light by three stops across half the frame with a soft transition. Each piece is diamond-cut from water-white optical glass and verified for flatness and parallelism using laser interferometry.

Landscape and architectural shooters balancing

This filter suits users who need consistent density and neutral colour when balancing exposure between sky and foreground. The soft-edge graduation blends naturally over uneven horizons such as mountains or cityscapes. Buyers requiring a hard transition line for flat horizons or a different density value should look at alternative filter configurations.

ND 0.9 density with soft-edge graduation

The defining specification is the ND 0.9 rating combined with a soft-edge graduated design. This delivers a three-stop reduction with a feathered transition line, determining exactly how the filter balances exposure across the frame.

Highlights

  • Neutral grey density preserves true colours across lighting changes
  • Soft-edge graduation blends exposure smoothly between bright and dark areas
  • Diamond-cut water-white glass ground to precise flatness and plane-parallelism
  • Laser interferometer verification ensures consistent parallelism on every filter
  • Densitometer and spectrophotometer testing guarantees repeatable density and transmission

Specifications

No published specifications for this item yet.

Questions about this item

Does the 4x4" size fit my existing matte box or filter holder?

The filter measures four by four inches, the standard size for professional matte boxes and drop-in filter holders used in cinema and broadcast production.

Will the soft-edge graduation match the horizon line on my wide-angle lenses?

The soft-edge transition is designed to blend gradually, making it suitable for wide-angle lenses where a hard edge would be visible in the frame.

How can I verify the ND 0.9 density is accurate after mounting the filter?

Each piece is tested with a densitometer for consistent density and a spectrophotometer for light transmission, so swapping identical filters mid-shoot produces no visible variation.

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