{"product_id":"nisi-100-x-150mm-nano-hard-edge-reverse-graduated-irnd-1-2-to-0-15-filter-4-to-0-5-stop","title":"NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 1.2 to 0.15 Filter (4 to 0.5-Stop)","description":"\u003cul\u003e \u003cli\u003e16x to 1.4x Filter Factor, 4 to 0.5-Stop\u003c\/li\u003e \u003cli\u003eReduce Exposure for Sunrises or Sunsets\u003c\/li\u003e \u003cli\u003eIncreases to Maximum Density at Center\u003c\/li\u003e \u003cli\u003eEffect Configured for Sun at Horizon\u003c\/li\u003e \u003cli\u003eHard-Edged Line of Transition\u003c\/li\u003e \u003cli\u003eNiSi Optical Nano Coating\u003c\/li\u003e \u003cli\u003eNeutral Results, Visible, \u0026amp; IR Spectrums\u003c\/li\u003e \u003cli\u003eOptical Glass Construction\u003c\/li\u003e \u003cli\u003e2mm Thick\u003c\/li\u003e \u003cli\u003eLeatherette Pouch\u003c\/li\u003e \u003c\/ul\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cp\u003e This \u003cb\u003eNano Hard-Edge Reverse-Graduated IRND 1.2 to 0.15 Filter\u003c\/b\u003e from \u003cb\u003eNiSi\u003c\/b\u003e is compatible with filter holders that can accommodate 2mm-thick, 100 x 150mm rectangular filters. It can be applied to darken bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image. \u003cbr\u003e \u003cbr\u003e This filter achieves its effect with a 1.2 band of density across its center region that provides a 4-stop reduction in light from entering a lens. This band extends approximately 4mm in both vertical directions which tapers to a 0.15 density that provides a 0.5-stop reduction in light at the edge above it. Directly below the 1.2 band of density, it tapers to clear, with a hard-edged line of transition before the clear area. \u003cbr\u003e \u003cbr\u003e The placement of a 1.2 band of density that tapers to a density of 0.15 above it with a clear area directly below, allows the NiSi 100 x 150mm Nano Reverse-Graduated IRND 1.2 to 0.15 Filter to match the positioning of the sun when it is at, or immediately above the horizon. In such instances, the sun can appear closer to the center of an image as opposed to the upper edge, and an increase in brightness is created that is more prominent on both sides of the sun than above it. This pattern of brightness corresponds to the density pattern on the NiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 1.2 to 0.15 Filter. The hard-edged line of transition in this reverse, graduated neutral density filter is useful for hard transitions between the sky and land, while the 4-stop to 0.5-stop gradation is applicable to multiple regions of brightness within the sky. \u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdl\u003e \u003cdd\u003e \u003cul\u003e \u003cli\u003eCompatible with filter holders that can accommodate 2mm-thick, 100 x 150mm rectangular filters\u003c\/li\u003e \u003cli\u003eEffectively darkens bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image\u003c\/li\u003e \u003cli\u003e4-stop band of density that tapers to a 0.5-stop density at the edge above it while directly above a clear area creates a neutral density pattern that matches the positioning of the sun when it is at, or immediately above the horizon\u003c\/li\u003e \u003cli\u003e4-stop band of density extends approximately 4mm in both vertical directions\u003c\/li\u003e \u003cli\u003eDensity pattern corresponds to the brightness pattern of the sun when it appears at or is closer to the horizon as opposed to a higher angle, which creates an increase in brightness that is more prominent on both sides of the sun than above it\u003c\/li\u003e \u003cli\u003eHard-edged line of transition between the 4-stop band of density and the clear area below it is useful for hard transitions between the sky and land\u003c\/li\u003e \u003cli\u003e4-stop to 0.5-stop gradation is applicable to multiple regions of brightness within the sky\u003c\/li\u003e \u003cli\u003eFilter does not affect the overall coloration of the image\u003c\/li\u003e \u003cli\u003eEach surface includes one layer of NiSi Optical Nano Coating that attenuates infrared light as well as visible wavelengths, to maintain color neutrality and suppress color casts due to increased exposure times\u003c\/li\u003e \u003cli\u003eNano coating provides an improved beading effect with water or oil for more efficient cleaning\u003c\/li\u003e \u003cli\u003eConstructed from optical glass for clarity\u003c\/li\u003e \u003cli\u003eLeatherette pouch included for storage and transport\u003c\/li\u003e \u003c\/ul\u003e \u003c\/dd\u003e \u003c\/dl\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\u003cdiv\u003e \u003cdiv\u003eIn the Box\u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003eNiSi 100 x 150mm Nano Hard-Edge Reverse-Graduated IRND 1.2 to 0.15 Filter (4 to 0.5-Stop)\u003c\/div\u003e \u003c\/div\u003e \u003cul\u003e \u003cli\u003eFilter Pouch\u003c\/li\u003e \u003cli\u003eLimited 1-Year Warranty\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eType\u003c\/td\u003e \u003ctd\u003eReverse-graduated neutral density\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEdge Blending\u003c\/td\u003e \u003ctd\u003eHard\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSize\u003c\/td\u003e \u003ctd\u003e3.9 x 5.9\" (100.0 x 150.0 mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eThickness\u003c\/td\u003e \u003ctd\u003e0.1\" (2.0 mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDensity\u003c\/td\u003e \u003ctd\u003e1.2 to 0.15\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFilter Factor\u003c\/td\u003e \u003ctd\u003e16 (4 stop) and 1.4 (0.5 stop)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEffect\u003c\/td\u003e \u003ctd\u003eReduces exposure in select areas of an image and helps to attenuate IR contamination\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eConstruction\u003c\/td\u003e \u003ctd\u003eH-K9L optical glass\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003e \u003ca\u003ePackaging Info\u003c\/a\u003e \u003c\/th\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePackage Weight\u003c\/td\u003e \u003ctd\u003e0.7 lb\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBox Dimensions (LxWxH)\u003c\/td\u003e \u003ctd\u003e8.6 x 6.8 x 1.0\"\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.","brand":"NiSi-10","offers":[{"title":"Default Title","offer_id":35177822032,"sku":"NIRN12100150:NIRN12100150:bhpv","price":24635.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/products\/nisi_reverse_ir_gnd_16_1_2_100x150_reverse_graduated_neutral_density_1489695666000_1291535.jpg?v=1575983666","url":"https:\/\/www.tanotis.com\/products\/nisi-100-x-150mm-nano-hard-edge-reverse-graduated-irnd-1-2-to-0-15-filter-4-to-0-5-stop","provider":"Tanotis","version":"1.0","type":"link"}