The SIRUI GND1.2 (4 Stops) Square Filter can be used with SIRUI and other brands of 100mm filter holders. A 100mm filter holder will allow you to attach SIRUI GND Square Filters onto full-frame camera lenses as wide as 16mm and filter diameters up to 82mm.
- 2mm thick
- Made from precision ground and polished German manufactured Schott Plate Glass B270 ensures the highest resolution and optical flatness.
- An exclusive nano lens coating process allows many ultra-thin layers of coating to be placed on each lens surface to insure perfectly linear, uniform reduction of light from edge-to-edge, maximum light transmission, reduced reflections and precise color rendition.
- The Protection Coating (waterproof, oil-resistant, scratch-resistant, anti-reflective, anti-static) allows for easy cleaning and superior lens protection.