{"title":"Optolong Camera Clip-In Filters","description":"\u003cp\u003eOptolong camera clip-in filters. Part of \u003ca href=\"\/collections\/optolong\"\u003eOptolong\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"optolong-canon-eos-cls-ccd-light-pollution-filter-clip-in","title":"Optolong Canon EOS CLS-CCD Light Pollution Filter Clip-In","description":"\u003cp style=\"margin: 0px 0px 15px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003eThe CLS-CCD broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for photograghic purpose at light pollution area.\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 15px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003e \u003c\/p\u003e\u003cp style=\"margin: 0px 0px 15px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003e \u003cspan style=\"color: rgb(255, 102, 0);\"\u003e\u003cstrong\u003eMain Use and Performance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul style=\"padding: 0px; margin: 0px 0px 10px 25px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eCLS-CCD is different from CLS with infrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eFit with color CCD cameras and modified DSLRs for astrophotography\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eWork well on most emission nebulae, planetary nebulae and supernova remnants\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eNoticeable boost in contrast and visibility of the fainter outer detail\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eLight pollution filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003e\n\u003cspan style=\"color: rgb(255, 102, 0);\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e \u003c\/span\u003eThe filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cp style=\"margin: 0px 0px 15px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(255, 102, 0);\"\u003e\u003cstrong\u003eSpectral Curve\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"padding: 0px; margin: 0px 0px 10px 25px; font-family: Arial, sans-serif; font-size: 14.6667px; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eThe Major Emission Lines of Nebulae\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003e H-ß486.1nm OIII 495.9nm OIII 500.7nm H-a656.3nm\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eThe Major Emission Lines of Artificial Light Pollution\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eHg 435.8nm 546.1nm 577nm 578.1nm\u003c\/li\u003e\n\u003cli style=\"line-height: 20px; padding: 0px; margin: 0px;\"\u003eNa 598nm 589.6nm 615.4nm 616.1nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":44013700415599,"sku":"O-CLSCCD-EOS","price":169.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Optolong-CLS-CCD__33127.jpg?v=1766560166"},{"product_id":"optolong-cls-clip-on-filter","title":"Optolong CLS Clip-On Filter","description":"\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; outline: none; font-size: 12pt;\"\u003eOptolong CLS (City Light Suppression) is a dual-bandpass filter which selectively enhances emission from nebulas and suppresses the transmission of light pollution sources. CLS enhances the contrast of nebulas and reduce background brightness mostly dominated by light pollution. It has wider passband than UHC (Ultra High Contrast) and thus it enhances deep sky objects under mild to moderate light pollution yet offering a more balanced colour rendition.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003eCLS selectively cuts out light pollution emission. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow caused by emission from neutral oxygen in our atmosphere. Among the emission lines enhanced are OIII (496, 500nm), H-beta (486nm), NII (654, 658nm), H-alpha (656nm) and SII (672nm).  \u003c\/p\u003e\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eHighlights\u003c\/h3\u003e\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e95% transmission at major nebula emission lines\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e0.1% transmission* at off-band at Na (589nm), Hg (435nm, 578nm). \u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003ePrecise and sharp roll-off at light pollutant lines\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e2 mm filter thickness (1.25\", 2\" and 77mm) | 1mm (clip series)\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMade on Schott substrate\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eFinely polished to 1\/4 wave accuracy\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eSurface quality: 60\/40 (MIL-O-13830 standard)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e*equivalent to OD3 \u003c\/p\u003e\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003e  Recommended applications\u003c\/h3\u003e\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eCanon ESO DSLR camera\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eDeep sky colour imaging, particularly emission nebula or DSO emitting in the H-alpha, H-beta, O-III and S-II lines\u003cspan style=\"margin: 0px; padding: 0px; outline: none; font-size: 1.17em;\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eCoating technologies\u003c\/h3\u003e\n\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif font-size: background-color: rgb\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMulti layers anti-reflection coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eNon cementing optical substrate coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eElectron-beam gun evaporation with ion-assisted deposition coating technology to enhance coating durability and resistance to scratching as well as stability on central wavelength such that passband does not deviate with temperature change\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003ePlanetary rotation system offers high precision and homogeneity of coating surface ensuring high value on passband transmission and off-band blocking. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eFilter cell technologies\u003c\/h3\u003e\n\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif font-size: background-color: rgb\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eCNC machined with aerospace grade aluminium\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eBlack anoidised finish and extinction treatment to prevent refection\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eLaser engraved fade-free wordings \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":44013700612207,"sku":"O-CLS-EOS","price":149.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/EOS_C_CLS__56468.jpg?v=1766560172"},{"product_id":"optolong-cls-clip-on-filter-canon-full-frame","title":"Optolong CLS Clip-On Filter Canon Full Frame","description":"\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; outline: none; font-size: 12pt;\"\u003eOptolong CLS (City Light Suppression) is a dual-bandpass filter which selectively enhances emission from nebulas and suppresses the transmission of light pollution sources. CLS enhances the contrast of nebulas and reduce background brightness mostly dominated by light pollution. It has wider passband than UHC (Ultra High Contrast) and thus it enhances deep sky objects under mild to moderate light pollution yet offering a more balanced colour rendition.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003eCLS selectively cuts out light pollution emission. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow caused by emission from neutral oxygen in our atmosphere. Among the emission lines enhanced are OIII (496, 500nm), H-beta (486nm), NII (654, 658nm), H-alpha (656nm) and SII (672nm).  \u003c\/p\u003e\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eHighlights\u003c\/h3\u003e\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e95% transmission at major nebula emission lines\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e0.1% transmission* at off-band at Na (589nm), Hg (435nm, 578nm). \u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003ePrecise and sharp roll-off at light pollutant lines\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003e2 mm filter thickness (1.25\", 2\" and 77mm) | 1mm (clip series)\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMade on Schott substrate\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eFinely polished to 1\/4 wave accuracy\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eSurface quality: 60\/40 (MIL-O-13830 standard)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e*equivalent to OD3 \u003c\/p\u003e\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003e  Recommended applications\u003c\/h3\u003e\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb font-size:=\"\" background-color:=\"\"\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eCanonEOS Full Frame DSLR camera  5D, 5D Mark II , 5D Mark III, and 6D only\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eDeep sky colour imaging, particularly emission nebula or DSO emitting in the H-alpha, H-beta, O-III and S-II lines\u003cspan style=\"margin: 0px; padding: 0px; outline: none; font-size: 1.17em;\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eCoating technologies\u003c\/h3\u003e\n\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif font-size: background-color: rgb\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eMulti layers anti-reflection coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eNon cementing optical substrate coating\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eElectron-beam gun evaporation with ion-assisted deposition coating technology to enhance coating durability and resistance to scratching as well as stability on central wavelength such that passband does not deviate with temperature change\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003ePlanetary rotation system offers high precision and homogeneity of coating surface ensuring high value on passband transmission and off-band blocking. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 0px; padding: 0px 0px 10px; outline: none; font-size: 18px; line-height: 27px; font-weight: 500; font-family: Cabin, Arial, sans-serif; color: rgb(253, 87, 87); background-color: rgb(255, 255, 255);\"\u003eFilter cell technologies\u003c\/h3\u003e\n\u003cul style=\"margin: 0px 0px 20px 20px; padding: 0px; outline: none; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif font-size: background-color: rgb\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eCNC machined with aerospace grade aluminium\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eBlack anoidised finish and extinction treatment to prevent refection\u003c\/li\u003e\n\u003cli style=\"margin: 0px; padding: 0px; outline: none;\"\u003eLaser engraved fade-free wordings \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp style=\"margin: 0px 0px 20px; padding: 0px; outline: none; line-height: 21px; font-size: 15px; color: rgb(32, 32, 32); font-family: \" pt sans arial sans-serif rgb background-color:=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":44013701333103,"sku":"O-CLS-EOS-FF","price":159.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/optolong-optolong-cls-filter-canon-full-frame-clip__37682.jpg?v=1766560178"},{"product_id":"optolong-ha-7nm-eos-c","title":"Optolong HA 7nm EOS-C","description":"\u003cp style=\"box-sizing: border-box; margin-top: 0px; color: rgb(53, 60, 65); font-family: Inter, -apple-system, BlinkMacSystemFont, \" segoe ui roboto helvetica arial sans-serif color emoji symbol rgb none ease font-size:=\"\" background-color:=\"\" transition:=\"\"\u003e\u003cspan style=\"box-sizing: border-box; transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"\u003eThe Optolong H-Alpha 7nm is a very narrow emission-line filter that works by permitting a 7nm bandwidth of light, focused on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths. Wavelengths that are in charge of natural light pollution, or skyglow, are radically decreased, as is artificial light pollution brought about by high and low pressure sodium and mercury vapor lights. The outcome is a high contrast image that uncovers the H-alpha line in all its brilliance.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: border-box; font-family: Inter, -apple-system, BlinkMacSystemFont, \" segoe ui roboto helvetica arial sans-serif color emoji symbol rgb none ease font-size:=\"\" background-color:=\"\" transition:=\"\"\u003e\u003cspan style=\"box-sizing: border-box; transition: none 0s ease 0s !important;\"\u003eThis Optolong H-Alpha EOS APS Clip filter will give a well defined contrast between the skyglow background and H-alpha transmitting objects, but since it has a FWHM of only 7nm, you won't see the same number of stars in the last picture as you would with the Optolong 12nm H-Alpha Filter. \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: border-box; margin-bottom: 0px; font-family: Inter, -apple-system, BlinkMacSystemFont, \" segoe ui roboto helvetica arial sans-serif color emoji symbol rgb none ease font-size:=\"\" background-color:=\"\" transition:=\"\"\u003e\u003cspan style=\"box-sizing: border-box; transition: none 0s ease 0s !important;\"\u003eThe Optolong EOS APS H-Alpha 7nm Filter is made with Schott glass that has been multi-coated with  ion-assisted deposition technology to guarantee scratch resistance and soundness on the central wavelength, or CWL. The filter cell is made of lightweight, strong metal and is CNC machined, sand-blasted, black anodized, and  finally laser engraved.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: border-box; margin-bottom: 0px; font-family: Inter, -apple-system, BlinkMacSystemFont, \" segoe ui roboto helvetica arial sans-serif color emoji symbol rgb none ease font-size:=\"\" background-color:=\"\" transition:=\"\"\u003eNot Compatible with EF-S lenses \u003c\/p\u003e\u003cp style=\"box-sizing: border-box; margin-bottom: 0px; font-family: Inter, -apple-system, BlinkMacSystemFont, \" segoe ui roboto helvetica arial sans-serif color emoji symbol rgb none ease font-size:=\"\" background-color:=\"\" transition:=\"\"\u003e\u003cspan style=\"box-sizing: border-box; transition: none 0s ease 0s !important;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":44013701431407,"sku":"O-Ha-EOS","price":299.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/optolong-optolong-h-alpha-7nm-eos-clip-filter-1130__68001.jpg?v=1766560182"},{"product_id":"optolong-l-pro-nikon-z-full-frame-clip-in-filter","title":"Optolong L-Pro Nikon Z Full Frame ILDC Clip-in Filter","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Optolong L-Pro Nikon Z Full Frame ILDC Clip-in Filter is a broadband multi-bandpass light pollution filter from Optolong Optics that installs directly in the throat of full-frame Nikon Z-series mirrorless bodies. It suppresses the main artificial-light emission lines — mercury vapour and high\/low-pressure sodium street lighting — along with natural skyglow from neutral oxygen, while keeping the transmission windows over the key nebula lines open: OIII (496\/500nm), H-beta (486nm), H-alpha (656nm), NII (654\/658nm) and SII (672nm). Peak transmission is greater than 90% across a 380–750nm working range, with light-pollution line blocking above 90%. The design goal is low colour cast, so star colour and broadband target colour stay close to natural.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you shoot a full-frame Nikon Z camera from suburban or moderately light-polluted skies and want cleaner contrast without the heavy colour shift of older UHC\/CLS filters. It works whether you are capturing wide Milky Way scenes, broadband deep-sky targets such as galaxies and star clusters, or simply want a general-purpose light-pollution filter that still records natural colour. If your targets are emission nebulae under heavy light pollution, the narrowband L-eXtreme is the better tool.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-bandpass broadband design:\u003c\/strong\u003e keeps the OIII, H-beta, H-alpha, NII and SII windows open for natural star colour and low cast on galaxies and reflection nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame clip-in fit:\u003c\/strong\u003e seats in the Nikon Z throat ahead of the sensor, so it works behind any compatible lens with no filter threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad light-pollution suppression:\u003c\/strong\u003e attenuates mercury and sodium street-lighting lines and atmospheric skyglow, with line blocking greater than 90%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-grade optical tolerances:\u003c\/strong\u003e λ\/4 transmitted wavefront, 60\/40 surface quality (MIL-O-13830) and 30-arcsec parallelism keep stars tight into the corners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable multi-layer coatings:\u003c\/strong\u003e ion-assisted deposition on a non-cementing substrate resists scratching and holds the central wavelength stable across temperature swings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical Design \u0026amp; Coatings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe L-Pro is an interference filter: its passbands are formed by stacked thin-film dielectric layers rather than absorption glass, which is why coating quality and layer count drive its performance. Optolong applies these coatings by ion-assisted deposition on a non-cementing substrate, producing hard, stable layers whose transmission peaks do not drift significantly with temperature or age. Because transmission in any interference filter is angle-dependent, the filter is specified for use at roughly 50mm focal length and longer; below that, the steeper light cone from wide lenses can shift the passband at the frame edges and create an interference edge that is easily cropped. The transmission curve below plots the multi-band passband (red) against artificial pollution lines (orange) and natural constellation emission lines (green).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/optolong-l-pro-nikon-z-transmission-chart.jpg?v=1783183694\" alt=\"Optolong L-Pro Nikon Z clip-in filter transmission spectrum chart showing multi-bandpass light pollution suppression across 380 to 750nm\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field Milky Way and nightscape imaging from suburban skies\u003c\/li\u003e\n\u003cli\u003eBroadband deep-sky imaging of galaxies, reflection nebulae and globular clusters\u003c\/li\u003e\n\u003cli\u003eGeneral light-pollution reduction for one-shot-colour astrophotography\u003c\/li\u003e\n\u003cli\u003eContrast enhancement where a broadband filter is preferred over narrowband\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera bodies:\u003c\/strong\u003e Nikon Z5, Z6, Z6II, Z7, Z7II, Z8, Z9 and ZF (full-frame Z mount).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLenses:\u003c\/strong\u003e all Z-series lenses; all F-series main and auxiliary lenses via the appropriate mount adapter\/connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e intended for use at 50mm and above; wider lenses may show an interference edge that can be cropped out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus and compose:\u003c\/strong\u003e the clip sits in front of the sensor, so use Live View.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot a solar filter — never use it to view or image the Sun.\u003c\/li\u003e\n\u003cli\u003eFull-frame Z mount only; not for APS-C\/DX or other mounts.\u003c\/li\u003e\n\u003cli\u003eA light-pollution filter raises contrast; it does not make the target brighter or remove light pollution entirely.\u003c\/li\u003e\n\u003cli\u003eBelow ~50mm the interference edge may need cropping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this good for beginners?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It installs without tools and works behind any compatible lens, so it is one of the simplest ways to lift contrast from a light-polluted backyard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it for visual observing or astrophotography?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrimarily astrophotography. As a broadband filter it also improves visual contrast, but its main role is imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich cameras does it fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFull-frame Nikon Z bodies: Z5, Z6, Z6II, Z7, Z7II, Z8, Z9 and ZF.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cause a colour cast?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFar less than traditional UHC\/CLS filters; the multi-bandpass design is tuned for low cast and natural star colour.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it different from the L-eXtreme?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe L-Pro is broadband for general deep-sky, galaxies and Milky Way work with natural colour. The L-eXtreme is dual-narrowband (Ha\/OIII) for emission nebulae in heavy light pollution.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn short: a low-colour-cast broadband clip-in filter for full-frame Nikon Z cameras that cuts sodium and mercury light pollution plus skyglow for Milky Way and broadband deep-sky imaging. Use it at 50mm and up, compose in Live View, and step up to the L-eXtreme when your targets are emission nebulae.\u003c\/p\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":53546020143215,"sku":"OPT-LPRO-NKZ-FF","price":314.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/3bc5b5663ee879da7a48733408704256.jpg?v=1783176103"}],"url":"https:\/\/ontariotelescope.com\/collections\/optolong-clip-in.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}