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NiSi Filters

NANO COATED OPTICAL GLASS IR GND FILTERS 

IDEAL GRADUATION

Cameras cannot expose for all the detail of extremely bright and dark scenes (dynamic range) at the same time so we use Graduated Neutral Density Filters  (GND) to help our cameras balance the exposure between the bright and dark part of our scene. GND Filters are typically distinguished by the type of transition that exists between the transparent and dark areas of the filter.  For this reason we can identify four families of GND's.

NiSi Filters Graduated Neutral Density F
NiSi Soft GND
NiSi Hard GND
NiSi Reverse GND
NiSi Medium GND

Truly Colour Neutral Filters From NiSi

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No Filter

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NiSi ND Filter

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Well Known Other Manufacturer Filter

All NiSi Filters Are The Highest Quality Nano Coated, Low Reflection Optical Glass

NiSi Reflection Test
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nisi medium gnd
nisi hard gnd
NiSi reversre gnd
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SOFT GND FILTER

 

Soft GND Filter are characterised by a soft transition (they change from light to dark more gradually) and are therefore used when the transition between light and dark areas is not so clear. A classic example is a shot in a mountainous area.

Available Size : 75x100mm | 100x100mm | 150x170mm | 180x210mm

Density : 0.6 | 0.9 | 1.2

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MEDIUM GND FILTER

Medium GND Filter is a rectangular filter that helps to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in the other regions of the image. It is particularly useful for images that feature buildings, mountains and other small elements that protrude into the skyline.

Available Size : 75x100mm | 100x150mm | 150x170mm

Density : 0.6 | 0.9 | 1.2

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HARD GND FILTER

Hard GND Filter, which are characterized by a clear boundary (it’s obvious where one begins and the other ends) between the transparent and dark areas. They are therefore used when the separation between the bright and dark areas of your scene is very defined, such as the horizon at sea.

Available Size : 75x100mm | 100x100mm | 150x170mm | 180x210mm

Density : 0.6 | 0.9

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REVERSE GND FILTER

Reverse GND Filter, which are nothing more than hard-edge GNDs with the dark area that fades away the more you move from the line of separation to the upper border of the filter. Basically, they were invented to better manage sunrises and sunsets, where the light is more intense on the horizon line (middle).

Available Size : 75x100mm | 100x100mm | 150x170mm | 180x210mm

Density : 0.6 0.9  1.2

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