NiSi Square Nano IR Hard Graduated ND Filter 100x150mm GND4 0.6

NiSi Nano IR Hard Graduated Neutral Density Filter

The NiSi Nano IR Hard Graduated Neutral Density (GND) filter is specially designed for landscape photographers. It is made from high-quality optical glass (H-K9L) with a nano coating on both sides to preserve fine details and prevent loss of image quality.

This filter features a hard transition between the dark and clear areas, making it ideal for scenes with a clearly defined boundary between bright and dark regions, such as the horizon line or the boundary between sea and sky. The filter can be repositioned within the holder to allow precise composition and optimal results.

Key Features

• Constructed from premium optical glass for excellent clarity and color fidelity
• Hard-edge graduated neutral density filter darkens bright areas (e.g., skies) while leaving other parts unaffected
• Does not affect image coloration, allowing use with other filters
• Special infrared (IR) protection coating reduces unwanted infrared light that can cause red color casts at small apertures
• Ultra-low color cast and ultra-low reflection for natural color reproduction
• No vignetting, ensuring full image coverage
• High resolution and sharpness
• Nano coating on both sides provides water and oil repellency

Usage

This hard GND filter is best used when the scene has a distinct separation between bright and dark areas. It is particularly effective for landscape photography involving horizons or sea and sky boundaries. The IR coating helps maintain natural colors by blocking infrared light that can otherwise affect digital sensors.