SKU: 89440503234

NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 0.9 to 0.15 Filter (3 to 0.5-Stop)

Sale price$8919.00 Regular price$9910.00
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Description

NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 0.9 to 0.15 Filter (3 to 0.5-Stop)8x to 1. 4x Filter Factor, 3 to 0. 5 Stop Reduce Exposure for Sunrises or Sunsets Increases to Maximum Density at Center Effect Configured for Sun at Horizon Hard Edged Line of Transition NiSi Optical Nano Coating Neutral Results, Visible, & IR Spectrums Optical Glass Construction 2mm Thick Leatherette Pouch This Nano Hard Edge Reverse Graduated IRND 0. 9 to 0. 15 Filter from NiSi is compatible with filter holders that can accommodate 2mm thick, 100 x

  • 8x to 1.4x Filter Factor, 3 to 0.5-Stop
  • Reduce Exposure for Sunrises or Sunsets
  • Increases to Maximum Density at Center
  • Effect Configured for Sun at Horizon
  • Hard-Edged Line of Transition
  • NiSi Optical Nano Coating
  • Neutral Results, Visible, & IR Spectrums
  • Optical Glass Construction
  • 2mm Thick
  • Leatherette Pouch

This Nano Hard-Edge Reverse-Graduated IRND 0.9 to 0.15 Filter from NiSi is compatible with filter holders that can accommodate 2mm-thick, 100 x 150mm rectangular filters. It can be applied to darken bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image.

This filter achieves its effect with a 0.9 band of density across its center region that provides a 3-stop reduction in light from entering a lens. This band extends approximately 4mm in both vertical directions which tapers to a 0.15 density that provides a 0.5-stop reduction in light at the edge above it. Directly below the 0.9 band of density, it tapers to clear, with a hard-edged line of transition before the clear area.

The placement of a 0.9 band of density that tapers to a density of 0.15 above it with a clear area directly below, allows the NiSi 100 x 150mm Nano Reverse-Graduated IRND 0.9 to 0.15 Filter to match the positioning of the sun when it is at, or immediately above the horizon. In such instances, the sun can appear closer to the center of an image as opposed to the upper edge, and an increase in brightness is created that is more prominent on both sides of the sun than above it. This pattern of brightness corresponds to the density pattern on the NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 0.9 to 0.15 Filter. The hard-edged line of transition in this reverse, graduated neutral density filter is useful for hard transitions between the sky and land, while the 3-stop to 0.5-stop gradation is applicable to multiple regions of brightness within the sky.

  • Compatible with filter holders that can accommodate 2mm-thick, 100 x 150mm rectangular filters
  • Effectively darkens bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image
  • 3-stop band of density that tapers to a 0.5-stop density at the edge above it while directly above a clear area creates a neutral density pattern that matches the positioning of the sun when it is at, or immediately above the horizon
  • 3-stop band of density extends approximately 4mm in both vertical directions
  • Density pattern corresponds to the brightness pattern of the sun when it appears at or is closer to the horizon as opposed to a higher angle, which creates an increase in brightness that is more prominent on both sides of the sun than above it
  • Hard-edged line of transition between the 3-stop band of density and the clear area below it is useful for hard transitions between the sky and land
  • 3-stop to 0.5-stop gradation is applicable to multiple regions of brightness within the sky
  • Filter does not affect the overall coloration of the image
  • Each surface includes one layer of NiSi Optical Nano Coating that attenuates infrared light as well as visible wavelengths, to maintain color neutrality and suppress color casts due to increased exposure times
  • Nano coating provides an improved beading effect with water or oil for more efficient cleaning
  • Constructed from optical glass for clarity
  • Leatherette pouch included for storage and transport
In the Box
NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 0.9 to 0.15 Filter (3 to 0.5-Stop)
  • Filter Pouch
  • Limited 1-Year Warranty
Type Reverse-graduated neutral density
Edge Blending Hard
Size 3.9 x 5.9" (100.0 x 150.0 mm)
Thickness 0.1" (2.0 mm)
Density 0.9 to 0.15
Filter Factor 8 (3 stop) to 1.4 (0.5 stop)
Effect Reduces exposure in select areas of an image and helps to attenuate IR contamination
Construction H-K9L optical glass
Packaging Info
Package Weight 0.7 lb
Box Dimensions (LxWxH) 8.6 x 6.7 x 0.9"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 89440503234

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I live the Quality of this monitor for the price it was so easy to setup She’s up . The quality is everything the box included all cables that connect except of course HDMI but that’s not included. The picture quality and connectivity is amazing I have not complaints. I love that there are enough ports to add additional devices and screen adjustable
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Reviewed in the United States on April 6, 2026
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J. W
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★★★★★ 5
Vivid color and a wonderful audio sound!
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Wow. With this price, the color quality of this monitor is amazing. Most surprising part is the speaker! The sound is so nice! My son use it to link his Chromebook to goto YouTube and enjoy to classic music played by Berlin philharmonic, wow!!! This is really a wonderful monitor!! Really a great product.
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★★★★★ 5
Nice monitor great value
Size: 24
I liked this so much I got 2. Nice size for a monitor, looks good, works good. No sound, camera or mic, so I bought a speaker and camera on Amazon too.
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Reviewed in the United States on April 21, 2026
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Richard S. Meyer
Bozeman, US
★★★★★ 5
A quality product
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Reviewed in the United States on June 9, 2026
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Boyd Mckee Kamer
Lowell, US
★★★★★ 5
Koorui 34E6UC (34" 3440×1440, 180 Hz, 1000R curved VA panel) — But Missing Info Buyers Should Know
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