NiSi Square Nano IR Soft Graduated ND Filter 100x150mm GND32 1.5

NiSi Nano IR Soft Graduated Neutral Density Filter

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

This filter features a soft graduated transition from a dense dark area at the top to clear at the bottom, effectively reducing overexposure in bright skies while leaving the rest of the frame unaffected. The soft edge design is ideal for scenes where the transition between bright and dark areas is gradual, such as mountainous landscapes.

Key Features

• Constructed from premium optical glass (H-K9L) for clarity and color fidelity
• Soft graduated neutral density design with a smooth transition from dark to clear
• Special nano coating on both sides provides water and oil repellency
• Infrared (IR) protection coating eliminates unwanted infrared light to prevent red color casts, especially when shooting at small apertures
• Ultra-low color cast and ultra-low reflection for natural color reproduction
• High resolution with no vignetting
• Can be repositioned in the filter holder to recompose the image for optimal results

Technical Specifications

• Filter size: 100 x 150 mm
• Filter density: GND32 (1.5 ND, approximately 5 stops)
• Material: Environmental optical lens glass (H-K9L)
• Coating: NiSi Optical Nano Coating on both sides

Usage Recommendations

This filter is recommended for use with wide-angle and normal focal length lenses. It is designed to work optimally with digital sensors, providing nearly flat attenuation across visible and infrared spectrums to eliminate color casts and ensure cleaner, truer blacks.

The filter does not affect the coloration of the image and can be used in combination with other filters without causing color shifts.