Circular filters

Circular ND8 (0.9) 3 Stop PRO Nano HUC IR SLIM Filter

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NiSi ND8 (3 Stop) PRO Nano HUC IR SLIM
  • No colour cast thanks to the IR coating which blocks infrared light.
  • Very low peripheral light fall (vignetting) thanks to the very thin aeronautical aluminum profile of only 3.5mm. One of the world’s thinnest ND SLIM filters.
  • Lens grade optical glass for precision applications of the highest quality and transparency (NiSi exclusive), the only filter to use the same glass as the highest quality elements of photographic lenses and optical instruments.
  • Cleaning is very easy thanks to the Nano Coating and the water repellent and oil and grease resistant coating. NiSi patent.
  • Anti-glare coating against parasitic lights, ghost lights, flares and unwanted reflections.
SKU: uknisi0294a
Official NiSi UK Guarantee
Weather resistant
Nano® coating
Official technical support
99% colour accuracy

NiSi ND8 (3 Stop) PRO Nano HUC IR SLIM

Circular screw NiSi ND filters are available in a wide range of sizes, from 40.5mm to 82mm. Here in the 3-stop version ND8 (1.8).

NiSi neutral density (ND) filters are the ideal tool for managing light in the field. Thanks to the wide range of densities available, NiSi ND filters allow you to extend shutter speeds even in bright conditions. Managing light with ND Filters allows you to have a fourth way to control exposure (in addition to ISO, time and aperture).


All NiSi square use Nano Coating®, this wording indicates the use of the exclusive Nano Coating treatment which makes the filter water-repellent and oleophobic for perfect sharpness. NiSi filters also use IR technology, i.e. the coating that blocks infrared light, and therefore the dominant magenta colour.

Unparalleled Quality

NiSi filters are all made of the highest quality lens grade optical glass so as not to lose even the smallest detail in your images. The special Nano Coating coating on both sides minimises unwanted reflections and gives the NiSi neutral density filters the characteristic of being water-repellent and oleophobic. There are no comparable quality filters thanks to the exclusive NiSi glass used, with which you can be confidant that your lenses will not lose definition.

Unique on the market

Thanks to the very high chromatic correspondence and absence of colour cast, you can finally say goodbye to impractical and time consuming colour corrections in post production. NiSi optical glass is not the classic B270 used by many manufacturers, but it is a superior quality glass used by the major manufacturers of photographic lenses specifically for the finest optical elements, NiSi filters do not degrade the image and your lens and photographic sensor will always work at maximum of their potential.


The Nano® Coating treatment gives the filter the quality of repelling water and oils, making cleaning very easy even in extreme conditions or with the presence of sea water. The finishing of the edges and the rounded corners improve the resistance of the filter and the grip. Our filters and holders are born to be used outdoors, in any weather situation, enjoy photography in its purest essence.

HUC glass

HT glass (High Transmission 99.2%), HUC (High-ultra Clarity): robust glass with no loss of detail is exclusive to NiSi. The ND 6 Stop Circular NiSi filter also uses optical glass for precision applications; the highest quality for your photography.

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Reviews for Circular ND8 (0.9) 3 Stop PRO Nano HUC IR SLIM Filter

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  1. Douglas Cocks (verified owner)

    Verified reviewVerified review - view originalExternal link

    Excellent filter, Arrived quickly.

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