{"product_id":"astronomik-uhc-2-m48-filter-high-contrast-for-deep-sky-observations","title":"Astronomik UHC 2\" M48 Filter – High Contrast for Deep Sky Observations","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eAstronomik UHC 2\" M48 Filter – Enhance Deep Sky and Planetary Views\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eThe Astronomik UHC filter is perfect for improving your visual astronomy experience.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock more stars and hidden details in deep-sky objects with the Astronomik UHC (Ultra High Contrast) filter. It allows nearly 100% transmission of light from O-III and H-beta wavelengths while blocking out unwanted light pollution and scattered light. This makes gas and planetary nebulae more visible and detailed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik UHC filter enhances deep-sky views, making it ideal even for small telescopes. Its high transmission rate ensures successful observations with telescopes starting at 2\" (50mm) apertures. Optimized for focal ratios between f\/4 and f\/15, the filter provides sharp, distortion-free images.\u003c\/p\u003e\n\u003ch4\u003eBest Uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (under dark skies): Great for all telescope sizes, ensuring excellent clarity.\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban areas): Best suited for telescopes with a 100mm or larger aperture.\u003c\/li\u003e\n\u003cli\u003eCCD photography: Works well when paired with an additional IR-block filter.\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro-modified): Provides near-perfect color balance for deep-sky images.\u003c\/li\u003e\n\u003cli\u003eWebcam\/Video (Deep Sky): Helps reduce light pollution interference in video observations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Details\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e95% transmission at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 496nm and 501nm (O-III)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 656nm (H-alpha)\u003c\/li\u003e\n\u003cli\u003eOptimized for telescopes with focal ratios from f\/10 to f\/3.5\u003c\/li\u003e\n\u003cli\u003eBlocks unwanted wavelengths of light\u003c\/li\u003e\n\u003cli\u003ePerfect for use with small telescopes\u003c\/li\u003e\n\u003cli\u003eDurable, scratch-resistant, and resistant to moisture and aging\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eComes in a high-quality, protective filter box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Astronomik UHC filter is ideal for both beginner and experienced astronomers seeking to improve their deep-sky observations. With excellent transmission and premium build quality, it ensures crystal-clear views and is a versatile addition to your telescope setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Astronomik","offers":[{"title":"Default Title","offer_id":42055339770033,"sku":"8H0012","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/astronomik-uhc-2-m48-filter-802175.jpg?v=1782295474","url":"https:\/\/www.darkclearskies.co.uk\/products\/astronomik-uhc-2-m48-filter-high-contrast-for-deep-sky-observations","provider":"Dark Clear Skies ","version":"1.0","type":"link"}