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Rectangular glass filter, dark centre fading to clear edges

Urth

Urth 75x100mm Square Center Graduated ND8 3-Stop Lens Filter Plus+

SKU CH-3A4W-EEH06

A 75x100mm square centre-graduated ND8 filter giving a fixed three-stop light reduction for balanced horizon exposure, using German SCHOTT B270 optical glass with 20-layer nano-coating for water.

  • Balanced horizons with fixed 3-stop center graduation
  • Truer light reduction via 20-layer nano-coating
  • Color-neutral images from German SCHOTT B270 glass
  • Water, oil and scratch resistant coating
  • Easy cleaning with advanced nano-coating protection

Square center graduated filter for landscape

The Urth 75x100mm square filter applies a fixed three-stop light reduction across the centre of the frame. It is built for photographers who need to balance bright horizons against darker foregrounds in a single exposure.

German SCHOTT B270 glass with 20-layer nano-coating

The optical glass is coated with twenty nano-layers that deliver a consistent transmission curve and neutral colour rendition. The coating also repels water, oil and scratches while making the surface easier to clean in the field.

Check your filter holder accepts 75x100mm squares

This filter fits standard square holders that take 75 by 100 millimetre sheets. Verify your existing holder matches that format before ordering, as circular screw-in threads and other square sizes will not accept it.

How it compares

Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.

Price $70.99
Pricier than about 68% of the 1,281 comparable items (median $48.99).

Specifications

No published specifications for this item yet.

Questions about this item

What size filter holder does the 75x100mm square filter fit?

The filter measures 75 by 100 millimetres, so it fits any standard holder or adapter ring that accepts that square format.

How thick is the German SCHOTT B270 optical glass used in this filter?

The glass is 270 microns thick, providing a rigid, flat surface that resists flexing in square filter holders.

What is the correct orientation when sliding the filter into the holder for a centred horizon?

Align the graduated band so the darkest strip sits in the middle of the frame; inserting it upside down places the transition at the top or bottom edge instead.

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