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Rectangular 75x100mm glass filter with hard-edge graduated ND .9 coating

Haida

Haida Red Diamond 75x100mm 0.9 Hard Edge Graduated ND Filter

SKU CH-3QS1-4N7DS

A 75x100mm rectangular glass filter with a hard-edge 0.9 ND transition for balancing bright skies in landscape photography

  • 3-stop light reduction with ND 0.9 density
  • Hard-edge transition balances bright skies and dark foregrounds
  • Shock-resistant glass withstands outdoor shooting hazards
  • Nano multi-coating prevents colour cast and repels water
  • Rounded corners simplify insertion into 75x100mm holders

Filter purpose and format

This rectangular 75x100mm graduated neutral density filter darkens the upper portion of the frame by 0.9 density, equivalent to a three-stop reduction. It is designed for landscape photographers who need to balance bright skies with darker foregrounds in a single exposure.

Construction benefits

The Red Diamond series uses strengthened glass that is twice as resistant to breakage as standard filters. A nano multi-coating repels water, oil and fingerprints while maintaining sharpness and neutral colour, and rounded corners ease insertion into compatible filter holders.

Transition style constraint

The hard-edge transition shifts from clear to full density over a short distance, making it suitable only for scenes with a distinct, straight horizon such as seascapes or flat plains. It will produce a visible line on images with uneven terrain, trees or mountains intersecting the horizon.

Highlights

  • 3-stop light reduction with ND 0.9 density
  • Hard-edge transition balances bright skies and dark foregrounds
  • Shock-resistant glass withstands outdoor shooting hazards
  • Nano multi-coating prevents colour cast and repels water
  • Rounded corners simplify insertion into 75x100mm holders

Specifications

No published specifications for this item yet.

Questions about this item

Will the Nano Multicoating on the 75x100mm glass need special cleaning products to stay scratch-resistant?

The Nano Multicoating is waterproof, oil-proof and fingerprint-proof, so routine cleaning only requires a soft cloth and standard lens fluid; no special products are needed to maintain its scratch resistance.

How quickly does the hard-edge transition on the 0.9 graduated ND affect exposure balance when the horizon line moves?

The hard-edge design transitions rapidly from clear to full 3-stop density near the centre, so any shift in the horizon line immediately changes the exposure balance across the frame.

Does the 75x100mm rectangular filter generate noticeable heat during all-day outdoor use?

As a passive glass filter it produces no heat of its own; any warmth comes solely from ambient conditions, not from the filter itself.

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