NiSi Square Nano IRGND Medium 100x150mm ND8 0.9

NiSi Square Nano IR GND Medium 100x150mm ND8 (0.9) – Medium graduated ND to control bright skies

The NiSi Nano IR Medium Graduated Neutral Density (GND) filter in 100x150mm format helps you darken bright parts of a scene, such as skies, while keeping the rest of the image at a normal exposure. This rectangular filter is designed with a darker top that transitions gradually to clear at the bottom, making it suitable when buildings, mountains or other elements protrude into the skyline.

Designed for landscape photographers

This Nano IR Medium GND from NiSi is created specifically for landscape work. It addresses common exposure challenges in outdoor scenes by reducing brightness in the sky area without affecting the foreground exposure. As a result, you can preserve detail in highlights while maintaining normal exposure in other areas of the frame.

Optical quality and coatings

The filter is made from high quality optical glass (not resin). NiSi applies a nano coating to protect image detail and to reduce reflections. In addition, NiSi added an infrared protection coating layer to help reduce unwanted infrared light that can produce a red cast when shooting at small apertures. These coatings work together to bring back natural color and maintain definition in your images.

How the filter works and practical use

The filter features a dark area at the top that fades gradually to clear at the bottom. This medium-edged transition is intended to prevent overexposure of skies while leaving lower parts of the composition unaffected. You can reposition the filter within a holder to recompose the scene and align the graduated transition with varying horizons or elements that extend into the sky.

Neutral density filters do not alter the coloration of the image, so you can control exposure without changing color balance. The medium transition line makes this filter particularly useful for scenes with buildings, mountains and other small elements that protrude into the skyline.

Features

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

Specifications

FAQ

Question: Is this filter suitable for landscape photography?
Answer: Yes. The NiSi Nano IR Medium GND is specifically designed for landscape photographers and is useful for scenes with bright skies and elements like buildings or mountains that extend into the skyline.

Question: Will the filter change the colors in my photos?
Answer: No. Neutral density filters do not affect the coloration of the image, and this NiSi filter is described as having ultra low color cast and coatings intended to preserve natural color.

Question: Can I reposition the filter to match different horizons?
Answer: Yes. The filter can be repositioned in a holder so you can recompose and align the graduated transition where needed for best results.

Question: Does this filter reduce infrared contamination that can cause color casts?
Answer: Yes. NiSi added an infrared protection coating layer to help eliminate infrared light that can otherwise produce an unwanted red color when shooting at small apertures.

Question: What physical features help with image quality?
Answer: The filter uses high quality optical glass (not resin), nano coatings on both sides for water and oil repellence, and is specified to have ultra low reflection and no vignetting to support high definition results.