{"product_id":"baader-filtro-clear-1-25-messa-a-fuoco-protezione-polvere","title":"Baader Clear Filter 1.25\" (for focusing\/dust protection)","description":"\u003cp\u003e\u003cstrong\u003eThe Baader Clear Filter 1.25\"\u003c\/strong\u003e is a clear glass (with no colored optical coating) used for focusing when very narrowband filters are in use, which make the image too dim for comfortable focusing.\u003c\/p\u003e\n\n\u003ch2\u003eWhat it's for\u003c\/h2\u003e\n\u003cp\u003eNarrowband filters, especially very narrow ones, drastically reduce image brightness, making precise focusing difficult. The Baader Clear Filter, having the same mechanical thickness as Baader's colored and narrowband filters, allows comfortable focusing with a bright image; once focus is achieved, the filter can be removed and replaced with the desired imaging filter without needing to refocus (parfocality).\u003c\/p\u003e\n\u003cp\u003eIt can also simply be used as a dust protection cap for the optical train or eyepiece holder when not shooting.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eParameter\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eType\u003c\/td\u003e\u003ctd\u003eClear glass (Clear\/Clearglass)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eFormat\u003c\/td\u003e\u003ctd\u003e1.25\" (31.8mm)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eFrame\u003c\/td\u003e\u003ctd\u003eAluminum\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eFilter thickness\u003c\/td\u003e\u003ctd\u003e2 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eBrand\u003c\/td\u003e\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho it's for\u003c\/h2\u003e\n\u003cp\u003eEssential for anyone using narrowband or narrow bandpass filters who needs a quick and reliable way to focus before mounting the final imaging filter, or simply to protect the optical train from dust when not in use.\u003c\/p\u003e","brand":"Baader-Planetarium","offers":[{"title":"Default Title","offer_id":57966768193867,"sku":"BRBP2458415","price":43.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/Baader-Filters-clear-glass-filter-1-25_8f8f43e1-b01c-4706-b1ae-981819b34bf7.jpg?v=1785250386","url":"https:\/\/adriasky.it\/en\/products\/baader-clear-filter-1-25-focusing-dust-protection","provider":"Adriasky","version":"1.0","type":"link"}