{"product_id":"astronomik-cls-filter","title":"Astronomik CLS Filter","description":"\u003ch3\u003eThe Ultimate Light Pollution Filter for Deep-Sky Observation \u0026amp; Astrophotography in India\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong data-start=\"352\" data-end=\"402\"\u003eAstronomik CLS (City Light Suppression) Filter\u003c\/strong\u003e is one of the most effective light-pollution filters available today, designed to deliver exceptional clarity when observing or imaging deep-sky objects from urban and suburban skies. Whether you're capturing galaxies, nebulae, or star clusters, the Astronomik CLS filter dramatically enhances contrast by filtering out unwanted artificial light while preserving the natural colours of celestial objects.\u003c\/p\u003e\n\u003ch2 data-start=\"994\" data-end=\"1015\"\u003e\u003cstrong data-start=\"997\" data-end=\"1015\"\u003e✨ Key Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1017\" data-end=\"1063\"\u003e\u003cstrong data-start=\"1021\" data-end=\"1061\"\u003e✔ Superior Light Pollution Reduction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1064\" data-end=\"1329\"\u003eThe Astronomik CLS filter blocks major light pollution sources such as \u003cstrong data-start=\"1135\" data-end=\"1158\"\u003emercury vapor lamps\u003c\/strong\u003e, \u003cstrong data-start=\"1160\" data-end=\"1191\"\u003ehigh-pressure sodium lights\u003c\/strong\u003e, and \u003cstrong data-start=\"1197\" data-end=\"1208\"\u003eskyglow\u003c\/strong\u003e, making it ideal for observers living in bright Indian cities like Mumbai, Delhi, Bengaluru, Chennai, Kolkata, and Pune.\u003c\/p\u003e\n\u003ch3 data-start=\"1331\" data-end=\"1379\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1377\"\u003e✔ High Transmission for Maximum Detail\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1380\" data-end=\"1644\"\u003eWith extremely high transmission in the \u003cstrong data-start=\"1420\" data-end=\"1439\"\u003eH-alpha (656nm)\u003c\/strong\u003e, \u003cstrong data-start=\"1441\" data-end=\"1459\"\u003eH-beta (486nm)\u003c\/strong\u003e, \u003cstrong data-start=\"1461\" data-end=\"1477\"\u003eOIII (501nm)\u003c\/strong\u003e, and \u003cstrong data-start=\"1483\" data-end=\"1498\"\u003eSII (672nm)\u003c\/strong\u003e regions, the filter maintains excellent brightness and color integrity, perfect for both \u003cstrong data-start=\"1588\" data-end=\"1608\"\u003evisual astronomy\u003c\/strong\u003e and \u003cstrong data-start=\"1613\" data-end=\"1643\"\u003eDSLR\/CMOS astrophotography\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1646\" data-end=\"1681\"\u003e\u003cstrong data-start=\"1650\" data-end=\"1679\"\u003e✔ German Precision Filters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1682\" data-end=\"1810\"\u003eAstronomik filters are made in Germany using ultra-thin, scratch-resistant coatings and optically polished glass that ensures:\u003c\/p\u003e\n\u003cul data-start=\"1811\" data-end=\"1901\"\u003e\n\u003cli data-start=\"1811\" data-end=\"1836\"\u003e\n\u003cp data-start=\"1813\" data-end=\"1836\"\u003eZero image distortion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1837\" data-end=\"1864\"\u003e\n\u003cp data-start=\"1839\" data-end=\"1864\"\u003eNo reflections or halos\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1865\" data-end=\"1901\"\u003e\n\u003cp data-start=\"1867\" data-end=\"1901\"\u003eLong service life with no fading\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1903\" data-end=\"1945\"\u003e\u003cstrong data-start=\"1907\" data-end=\"1943\"\u003e✔ Works With All Telescope Types\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1946\" data-end=\"1964\"\u003eCompatible with:\u003c\/p\u003e\n\u003cul data-start=\"1965\" data-end=\"2074\"\u003e\n\u003cli data-start=\"1965\" data-end=\"1979\"\u003e\n\u003cp data-start=\"1967\" data-end=\"1979\"\u003eRefractors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1980\" data-end=\"2007\"\u003e\n\u003cp data-start=\"1982\" data-end=\"2007\"\u003eNewtonians \/ Dobsonians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2008\" data-end=\"2038\"\u003e\n\u003cp data-start=\"2010\" data-end=\"2038\"\u003eSCTs \/ Maksutov telescopes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2039\" data-end=\"2074\"\u003e\n\u003cp data-start=\"2041\" data-end=\"2074\"\u003eDSLR lenses (using adapter rings)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2076\" data-end=\"2122\"\u003e\u003cstrong data-start=\"2080\" data-end=\"2120\"\u003e✔ Perfect for Urban Indian Observers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2123\" data-end=\"2369\"\u003eIndian skies have high levels of light pollution and humidity. The CLS filter is engineered to deliver high-contrast views even in challenging environments, and is widely preferred by astrophotographers for Milky Way, nebulae, and galaxy imaging.\u003c\/p\u003e\n\u003ch2 data-start=\"2376\" data-end=\"2422\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003chr data-start=\"2642\" data-end=\"2645\"\u003e\n\u003ch2 data-start=\"2647\" data-end=\"2672\"\u003e\u003cstrong data-start=\"2650\" data-end=\"2672\"\u003e🎯 Recommended For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2673\" data-end=\"2881\"\u003e\n\u003cli data-start=\"2673\" data-end=\"2731\"\u003e\n\u003cp data-start=\"2675\" data-end=\"2731\"\u003eDeep-sky observers wanting cleaner, darker backgrounds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2732\" data-end=\"2799\"\u003e\n\u003cp data-start=\"2734\" data-end=\"2799\"\u003eAstrophotographers using DSLR, Mirrorless, CMOS, or CCD cameras\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2800\" data-end=\"2839\"\u003e\n\u003cp data-start=\"2802\" data-end=\"2839\"\u003eUsers imaging from Bortle 6–9 zones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2840\" data-end=\"2881\"\u003e\n\u003cp data-start=\"2842\" data-end=\"2881\"\u003eNebula, galaxy, and Milky Way imaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2883\" data-end=\"2886\"\u003e\n\u003ch2 data-start=\"2888\" data-end=\"2928\"\u003e\u003cstrong data-start=\"2891\" data-end=\"2926\"\u003eWhy Buy from Modern Telescopes?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2929\" data-end=\"3151\"\u003eModern Telescopes is \u003cstrong data-start=\"2950\" data-end=\"2985\"\u003eIndia’s largest telescope store\u003c\/strong\u003e and an authorized distributor of \u003cstrong data-start=\"3019\" data-end=\"3094\"\u003eAstronomik, Celestron, Bresser, GSO, ZWO, Explore Scientific, Planewave\u003c\/strong\u003e, and many more global astronomy brands.\u003cbr data-start=\"3134\" data-end=\"3137\"\u003eYou receive:\u003c\/p\u003e\n\u003cul data-start=\"3152\" data-end=\"3319\"\u003e\n\u003cli data-start=\"3152\" data-end=\"3188\"\u003e\n\u003cp data-start=\"3154\" data-end=\"3188\"\u003e100% genuine Astronomik products\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3189\" data-end=\"3229\"\u003e\n\u003cp data-start=\"3191\" data-end=\"3229\"\u003eIndia warranty \u0026amp; after-sales support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3230\" data-end=\"3260\"\u003e\n\u003cp data-start=\"3232\" data-end=\"3260\"\u003eFast delivery across India\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3261\" data-end=\"3319\"\u003e\n\u003cp data-start=\"3263\" data-end=\"3319\"\u003eExpert guidance from India’s top telescope specialists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astronomik","offers":[{"title":"1.25 Inch","offer_id":42792993685565,"sku":null,"price":8800.0,"currency_code":"INR","in_stock":true},{"title":"2 Inch","offer_id":42792993718333,"sku":null,"price":18800.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/6595\/8205\/files\/astronomik_cls_2-inch_800x800_dc110f3e-0d6e-46be-87a8-efe9dee419e9.jpg?v=1765386440","url":"https:\/\/moderntelescopes.net\/products\/astronomik-cls-filter","provider":"Modern Telescopes","version":"1.0","type":"link"}