ENHANCED IMAGE QUALITY: The NiSi ND100 circular neutral density filter is made from high-quality optical glass with a nano coating that ensures true-to-life color and clarity in your images. EASY TO USE: With its slim aluminum frame with double-sided threading and knurled edges this filter is easy to install and stack with other UV CPL or ND filters for greater versatility. CREATIVE CONTROL: This filter reduces light entering your lens by 10 stops creating a darkening effect on the image giving greater control over depth of field and conveys movement in your photos. PROTECTION FROM INFRARED LIGHT: The added infrared protection coating layer in the NiSi ND1000 filter helps eliminate the unwanted red color cast that can occur when shooting at a small aperture. DURABLE AND EASY TO CLEAN: The nano coating makes this filter waterproof scratch-resistant and anti-reflective ensuring long-lasting performance and easy maintenance.