{"product_id":"baader-filtro-neodymium-2-508mm-2458334a","title":"Baader Neodymium Moon \u0026 Skyglow IR-Cut 2” (50,8mm)","description":"\u003cul\u003e \u003cli\u003eAm\u0026eacute;liore grandement le contraste pour les observations lunaires et plan\u0026eacute;taires\u003c\/li\u003e \u003cli\u003eBloque la majeure partie des lumi\u0026egrave;res de la ville, le halo lumineux et les rayons infra rouge pour l'imagerie CCD\u003c\/li\u003e \u003cli\u003eRev\u0026ecirc;tement antivieillissement sur les bords\u0026nbsp;\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFiltre Neodymium IR-Cut, Moon \u0026amp; Skyglow. Ce filtre n\u0026rsquo;est pas une simple lame de verre color\u0026eacute;e mais au contraire un filtre s\u0026eacute;lectif pour augmenter les contrastes en observation visuelle et photographique.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003ch4\u003eWith integrated IR blocker and Phantom Group Coating\u003c\/h4\u003e \u003cdiv\u003e \u003cp\u003eDrastic contrast enhancement for all telescopes, without loss of image brightness! This filter is initially based on a development by Carl Zeiss. The effect of the element neodymium as filter material is very impressive. If used as co-mixture to optical glass, it improves the contrast and enhances the red portions of the image (especially for Mars and Jupiter). At night it blocks that part of the spectrum, which suffers most from street lighting \u0026ndash; and it blocks the light pollution, also known as \u0026bdquo;skyglow\u0026ldquo;. And lastly, the applied UV\/IR blocking coating (Luminance-coating - check the spectral trace) cuts all unwanted UV below 400 nm and NIR above 700 nm - this makes it the \u0026bdquo;sharpest contrast enhancing filter\u0026ldquo; for imaging.\u003c\/p\u003e \u003cp\u003eCompare with the moon \u0026amp; Skyglow filter before the naked eye, to test the effectiveness. Red and blue colours are extensively strengthened. If you cannot see the GRS (Great Red Spot) due to pollution try this which will allow you to see it.\u003c\/p\u003e \u003cp\u003eIn order to establish a precise plan area and to maintain the planarity despite the applied forces through the different layers of coating, a high technical effort is necessary. You have to choose from a large amount of raw glass only the best pieces in tension-free annealed quality to even hope for a good final quality may. All too easily, the glass deforms with improper preparation or coating on older evaporation systems. The final product is almost useless, if not greatest of care is taken at every stage of production.\u003c\/p\u003e \u003ch4\u003e\u003cstrong\u003eSURFACE DETAILS ON MARS, JUPITER AND MOON AS WELL AS MANY DEEP-SKY-OBJECTS BECOME MUCH MORE PROMINENT.\u003c\/strong\u003e\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eSelective contrast filter, especially suitable for all reflector telescopes\u003c\/li\u003e \u003cli\u003eFilters out specific wavelengths, especially those caused by streetlight and most importantly their scattered light which lightens up the night sky\u003c\/li\u003e \u003cli\u003eSelective blocking retains natural colours intact but with RGB significantly enhanced, differences in colour and brightness persist.\u003c\/li\u003e \u003cli\u003e95% transmission in the selected spectral range.\u003c\/li\u003e \u003cli\u003eFits all standard filter threads and can be combined with other filters \u0026ndash; e.g. the planeoptically\u003cbr \/\u003epolished (!) Baader planetary colour filters. This way, you can see fine details better or combine several images with a monochrome camera to achieve colour images.\u003c\/li\u003e \u003cli\u003eThe filter is at the same time optimised for Astrophotography due to it\u0026lsquo;s full UV\/IR-blocking coating. When used with DSLRs, stars will remain much tighter, because the unfocussed UV and IR parts of the spectrum are blocked out.\u003c\/li\u003e \u003cli\u003ePlaneoptically polished; can be used without problems in front of a binoviewer or for afocal photography \u0026ndash; far away from the focus without loosing sharpness!\u003c\/li\u003e \u003cli\u003eThe fine-optical polish and absence of wedge error in the glass ensure perfect sharpness when magnifying more than 200x - while the much cheaper \u0026ldquo;fire -polished\u0026rdquo; filter glasses destroy the optical wavefront at high mags\u003c\/li\u003e \u003cli\u003eNeodymium doped optical glass\u003c\/li\u003e \u003cli\u003eCoatings Front\/Back: 7-layer hard-BBAR-coating \/ 27-layered dielectrical UV\/IR-cut coating\u003c\/li\u003e \u003cli\u003eUltra-hard and durable Ion-beam hardened coatings \u0026ndash; may be cleaned anytime without fear\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003ch3\u003eSpectral Curve of the Moon \u0026amp; Skyglow Filter\u003c\/h3\u003e \u003cdiv class=\"leftImage\"\u003e\u003cimg height=\"500\" src=\"https:\/\/www.mhzoutdoor.com\/media\/mhz_img\/moon-skyglow-wavelength.jpg\" width=\"561\" \/\u003e\u003c\/div\u003e \u003cdiv class=\"leftImage\"\u003e\u003cbr \/\u003e \u003cdiv class=\"imageCaption\"\u003eSpectral curve of the Moon \u0026amp; Skyglow filter\u003c\/div\u003e \u003c\/div\u003e \u003cp\u003eThe adjacent graph shows you the spectral curve of our Neodymium Moon \u0026amp; Skyglow filters. On the horizontal axis, the wavelength in nanometers, and the vertical axis is the transmission amount (opacity) specified in percent.\u003c\/p\u003e \u003cp\u003eThe area under the curve is the spectral range that can pass through the filter.\u003c\/p\u003e \u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImportant note:\u003c\/strong\u003e\u003c\/span\u003e\u0026nbsp;Before you buy a \"Moon and Skyglow\" filter, which is now available from several manufacturers, compare the transmission curves! You will find that the original \"Baader Moon\u0026amp;Skyglow\" filter has the highest transmission and is blocked in the UV\/IR, with the same layer system as a Baader L filter. This means sharper images because only the spectral range where the telescope can deliver a sharp image, reaches the chip. In addition, our filter is plano-optically polished.\u0026nbsp; Only few\u0026nbsp;manufacturers are willing to do this, only because of this\u0026nbsp;the filter\u0026nbsp;is also suitable for the highest magnifications.\u003c\/p\u003e \u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e \u003ctbody\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eTRANSMISSION RANGE\u003c\/th\u003e \u003ctd class=\"data\"\u003emultiple bands (see spectral image)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eFILTER THICKNESS (WITHOUT CELL)\u003c\/th\u003e \u003ctd class=\"data\"\u003e1 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eAR-COATING\u003c\/th\u003e \u003ctd class=\"data\"\u003ePhantom Coating\u0026reg; Group, planeoptically polished\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eFILTER USAGE\u003c\/th\u003e \u003ctd class=\"data\"\u003eCCD, Contrast Enhancement, Color Correction, IR-Cut, Light Pollution Reduction, Lunar, Planetary\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eTYPE OF FILTER\u003c\/th\u003e \u003ctd class=\"data\"\u003eBandpass\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\u003cth class=\"label\"\u003eSINGLE OR SET?\u003c\/th\u003e \u003ctd class=\"data\"\u003eSingle Filter\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"Baader-Planetarium","offers":[{"title":"Default Title","offer_id":51261922902347,"sku":"BRBP2458334A","price":145.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/baader_filtro_neodymium_ir-cut_50.8mm_contrasto_alto_telescopi.jpg?v=1744219794","url":"https:\/\/adriasky.it\/fr\/products\/baader-neodymium-moon-skyglow-ircut-2-50-8mm-fr","provider":"Adriasky","version":"1.0","type":"link"}