NiSi Square Nano IRND 150x150mm ND4 2Stops

NiSi Square Nano IRND 150x150mm ND4 2Stops – Infrared protection for true-to-life colors

This NiSi Square Nano IRND filter in 150x150mm format is an ND4 (2-stop) neutral density filter designed to let you use longer exposure times while preserving natural color. It targets landscape photographers and other creators who need controlled exposure without unwanted color shifts.

High-quality optical glass and coatings

The filter is made of high definition optical glass (not resin). In addition, NiSi applies double-sided nano coating technology to protect the glass and maintain image detail. The nano coating repels water and oil, and it helps keep the surface clean for reliable performance in the field.

Preserve color with IR protection

Neutral density filters reduce the amount of visible light entering the lens to allow longer exposures. However, they can make the camera sensor more vulnerable to infrared light, which may cause an unwanted red cast when shooting at small apertures. To address this, NiSi adds an infrared protection coating layer to the filter. This IR protection helps eliminate infrared light reaching the sensor and restores natural, true-to-life color rendering.

Optical performance and handling

NiSi’s Square Nano IRND filter delivers high definition image quality and minimizes reflections. It is described as having an ultra low colour cast and ultra low reflection characteristics. The filter is designed to avoid vignetting and to keep fine scene details intact, making it suitable for landscape work and other situations where image quality is critical.

Available densities

This 150x150mm series of NiSi Nano IR Neutral Density filters is available in multiple density steps. The options include:

• 2 stop (ND4)
• 3 stop
• 4 stop
• 5 stop
• 6 stop
• 10 stop
• 15 stop

Key features

• Ultra Low Colour Cast, Ultra Low Reflection
• No Vignetting
• High Definition
• Nano Coating on Both Sides, Water & Oil Repellent
• Environmental Optical Lens glass (H-K9L)

FAQ

Question: Will this ND filter change the colors in my photos?

Answer: Neutral density filters do not inherently affect coloration. In practice, some ND filters can allow infrared light to influence color, especially at small apertures. NiSi’s Nano IRND includes an infrared protection coating to reduce that infrared-caused red cast and help maintain true-to-life, vibrant colors.

Question: Is this filter made of glass or resin?

Answer: This NiSi Nano IRND is made from high definition optical glass (not resin), which supports detailed image capture and optical performance.

Question: What does the nano coating provide?

Answer: The double-sided nano coating repels water and oil, reduces reflections, and helps preserve fine detail. It also contributes to easier cleaning and stable image quality in outdoor shooting conditions.

Question: Which stop options are available in the 150x150mm series?

Answer: The 150x150mm NiSi Nano IR Neutral Density filters are available in 2, 3, 4, 5, 6, 10, and 15 stop densities, with ND4 representing the 2-stop option described here.