NiSi ND16 100x150mm Reverse Graduated Neutral Density Filter - 4-Stop Reverse GND Lens Filter for Long Exposure & Landscape Photography - Perfect for Sunset, Sunrise, and High-Contrast Scenes

NiSi 100x150mm Nano IR Graduated ND filters The 100x150mm Nano IR Graduated Neutral Density Filter is made of optical glass (not resin) with nano coating technology which make it easy to clean. IR (infrared protection) Coating can eliminate the infrared light through the lens to bring back the natural true to life color. Compared with resin filters, the high light transmittance is one of the advantages from NiSi GND filter. It helps to darken specific areas of an image, such as bright skies while allowing for a normal, unaffected exposure in the other regions of the image. Water, Oil and Scratches Resistance High Definition Anti-Reflection No color cast The Soft Grad ND filter is densest at the edge and tapers to clear by the middle, with a soft-edged line of transition between the dense and clear areas. This type of filter is most appropriate for scenes which have a gradual or interrupted transition from the foreground to sky. The best examples of scenarios where a soft GND would be used include: alpine scenery with mountains crossing the horizon line, dramatic rock formations(sea stacks) in a seascape.