100x150mm GND filters (Graduated Neutral Density)

Optical glass graduated neutral density (GND) filters for the NiSi V Series holder systems are also compatible with third-party 100mm holder systems.

Graduated neutral density (GND) filters are an indispensable tool for any landscape photographer.

These lens grade optical glass filters overcome the dynamic range limitations of your camera and allow you to capture details in the brightest and darkest areas of your shot, with no loss of detail.

Designed for use with one of the 100mm NiSi filter holder systems, the 100x150mm NiSi graduated neutral density (GND) filters are also compatible with third-party holder systems that support 100mm wide and 2mm square filters.

Choose your NiSi Graduated Neutral Density (GND) filter

NiSi GND filters: your best ally

• Made of high-quality lens grade optical glass
• No colour cast
• Available in the following transitions: Soft, Hard, Medium and Reverse
• Available in 1 to 5 stops (for some transitions)
• IR coating to cancel out IR pollution
• With Nano Coating® for perfect detail in your shots and easy cleaning
• Compatible with third-party holders designed for 2mm thick filters (100mm wide)

NiSi Explorer GND Filters

The NiSi Explorer Collection is made for adventure. The filters feature a special glass hardening process that makes them double the strength of a typical glass filter. The Explorer series are much less prone to accidental breakage and perfect for active photographers. The NiSi Explorer Collection filters are made from B270 tempered glass. It features the same Nano coating process as our optical glass filters.

• Hardened Glass Filter
• Less Prone to Accidental Damage
• Made for Active Photographers that Love Adventure
• True to life color, No color cast
• No Vignetting
• High Definition
• Nano Coating on Both Sides, Water & Oil Repellent
• Compatible with the NiSi V7 100mm system

The NiSi Explorer Collection is made from B270 tempered glass, with a lower transmittance compared to our main filters lineup with Lens Grade Optical Glass, but with the peace of mind of having Hardened Tempered glass able to resist accidental damage when falling*.

If you don’t want any compromise in transmittance, discover our NiSi Optical Glass ND and GND range. If price matters most, you’ll find the quality of NiSi Coatings on B270 Glass (same standard as competitors) at a better price in our Explorer range.

*this does not mean it is unbreakable.  After a long period of time, the hardening may decline.

IR treatment

The anti infrared light treatment (or simply “IR“) blocks infrared light beyond a certain wavelength. IR pollution is responsible for the dominant magenta colour cast introduced, or more accurately, allowed through, by low-quality filters. The light absorption curve in NiSi filters is extremely uniform, ensuring a very high colour match.

In these graphs, we observe how the response of the NiSi ND (Neutral Density) filter (top left) is uniform, virtually perfect, at all wavelengths; both visible and invisible. It is important to know that even if the eye does not see certain wavelengths, the camera sensor captures them and the colours are altered. All other filters tested (each one of them popular, high priced brands) have a less flat, irregular curve, especially in the final part, infrared.

Essentially, an uneven line in transmission charts demonstrates that the filtration is uneven across the spectrum; the filter is letting in more or less light in certain wavelengths by comparison to others.

Neutral Density filters are so named because they are required to be neutral; to not give bias to any wavelength over another. So if your filter has a tendency to allow excess UV (blue/cooler) or IR (red/warmer) through, you don’t have a Neutral Density filter.

Super quality! NiSi is for me top of the top for photography filters! Can not wait to buy another glass of filters! ?

Slawomir Z.
Photographer

Quality glass, already own one for my go to telephoto lens and does the job perfectly for me

Ian L.
Amateur Photographer