{"product_id":"nisi-77mm-air-uv-protection-filter-with-99-9-peak-transmission","title":"NiSi 77mm Air UV Filter - 99.9% Peak Transmission","description":"\u003cp\u003eThe NiSi Air UV Filter is a 77mm threaded filter with 99.9% peak transmission and 0.1% reflectivity. It blocks UV light below 395nm and is designed for cameras and lenses above 100 megapixels.\u003c\/p\u003e\u003ch3 class=\"h6\"\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e77mm thread\u003c\/li\u003e\n\u003cli\u003e99.9% peak transmission\u003c\/li\u003e\n\u003cli\u003e99.6% average transmission between 420nm and 680nm\u003c\/li\u003e\n\u003cli\u003eULRC (Ultra Low Reflective Coating) with 0.1% reflectivity\u003c\/li\u003e\n\u003cli\u003eBlocks UV light below 395nm\u003c\/li\u003e\n\u003cli\u003e48-layer nano coating that resists scratches, stains, water and oil\u003c\/li\u003e\n\u003cli\u003eIncludes a plastic storage case and cleaning cloth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 class=\"h6\"\u003eTransmission and coating\u003c\/h3\u003e\u003cp\u003eThe filter uses ULRC (Ultra Low Reflective Coating), which is NiSi's own development. Average transmission is 99.6% between 420nm and 680nm. The 48-layer nano coating resists scratches, stains, water and oil.\u003c\/p\u003e\u003ch3 class=\"h6\"\u003eUV blocking\u003c\/h3\u003e\u003cp\u003eThe filter blocks UV light below 395nm, which reduces blue haze. The filter element is made from optical glass.\u003c\/p\u003e\u003ch3 class=\"h6\"\u003eFrame and testing\u003c\/h3\u003e\u003cp\u003eThe ultra-thin frame is knurled brass. Brass is more durable and resists deformation better than aluminium, and the knurling makes the filter easier to mount and remove. The slim design prevents vignetting on ultra-wide-angle lenses. Each filter is tested for transmission and reflectivity on a Shimadzu spectrophotometer.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003eFilter Type\u003c\/dt\u003e\n\u003cdd\u003eUV Filters\u003c\/dd\u003e\n\u003cdt\u003eFilter Size\u003c\/dt\u003e\n\u003cdd\u003e77mm\u003c\/dd\u003e\n\u003cdt\u003ePeak Transmission\u003c\/dt\u003e\n\u003cdd\u003e99.9%\u003c\/dd\u003e\n\u003cdt\u003eAverage Transmission\u003c\/dt\u003e\n\u003cdd\u003e99.6% (420 to 680nm)\u003c\/dd\u003e\n\u003cdt\u003eReflectivity\u003c\/dt\u003e\n\u003cdd\u003e0.1%\u003c\/dd\u003e\n\u003cdt\u003eUV Cut-off\u003c\/dt\u003e\n\u003cdd\u003eBlocks below 395nm\u003c\/dd\u003e\n\u003cdt\u003eCoating\u003c\/dt\u003e\n\u003cdd\u003e48-layer ULRC nano coating\u003c\/dd\u003e\n\u003cdt\u003eFrame\u003c\/dt\u003e\n\u003cdd\u003eUltra-thin knurled brass\u003c\/dd\u003e\n\u003cdt\u003eIn the Box\u003c\/dt\u003e\n\u003cdd\u003ePlastic storage case, cleaning cloth\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"NiSi","offers":[{"title":"Default Title","offer_id":45778067914928,"sku":"N-582572","price":140.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/0753\/8352\/files\/nisi-77mm-air-uv-protection-filter-with-99-9-peak-transmission-1.jpg?v=1793831350","url":"https:\/\/acstechnology.com.au\/products\/nisi-77mm-air-uv-protection-filter-with-99-9-peak-transmission","provider":"ACS Technology Australia","version":"1.0","type":"link"}