{"product_id":"usato-lacerta-prisma-di-herschel-nd3-t2-1-25","title":"[Used] Lacerta Herschel Wedge with ND3 filter, T2, 1.25\"","description":"\u003cdiv class=\"product-description\" style=\"font-family:Arial,sans-serif;font-size:16px;line-height:1.7;color:#333;\"\u003e\n\n\u003ch1 style=\"font-size:24px;font-weight:bold;\"\u003e[Used] Lacerta Herschel Prism with ND3 filter, T2, 1.25\"\u003c\/h1\u003e\n\n\u003cdiv style=\"background-color:#fff4e5;padding:15px;margin-top:10px;border-left:4px solid #f0a020;\"\u003e\n\n\u003cstrong\u003eUsed item\u003c\/strong\u003e\u003cbr\u003eUnique used piece, at €149.99. The photos are of the new product.\u003c\/div\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eThe \u003cstrong\u003eLacerta Herschel prism\u003c\/strong\u003e is used for observing and photographing the \u003cstrong\u003eSun in white light\u003c\/strong\u003e (sunspots, granulation, penumbra) with a \u003cstrong\u003erefractor telescope\u003c\/strong\u003e. The prism sends only a small portion of light to the eyepiece, and the included \u003cstrong\u003eND3 grey filter\u003c\/strong\u003e attenuates it further; the 1.25\" connector has an internal T2 thread for both observation and photography.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey features\u003c\/h2\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFor refractor telescopes only\u003c\/strong\u003e without built-in correctors.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNearly 100% polarized light\u003c\/strong\u003e thanks to the Brewster angle: with a polarizer filter, brightness can be adjusted by rotating the eyepiece or camera adapter.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eA polarizer filter is also required for visual observation\u003c\/strong\u003e, not included. The correct order is: telescope, prism, filters, eyepiece.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003e1.25\" output with internal T2 thread\u003c\/strong\u003e: a camera with a T2 ring can be connected directly.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eMain technical specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:10px;\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eBrand\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLacerta\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eModel\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHerschel prism with ND3 filter, T2, 1.25\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCondition\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eUsed\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eType\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHerschel prism for white light solar observation\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eSuitable telescopes\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eRefractors without built-in correctors\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTelescope-side connection\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e1.25\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eEyepiece-side connection\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e1.25\" with internal T2 thread\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eOptical path\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e61 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eIncluded filter\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eND3 (neutral grey)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003ePolarizer filter\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eNot included, required for visual observation\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cdiv style=\"background-color:#f0f8ff;padding:15px;margin-top:30px;border-left:4px solid #007acc;\"\u003e\n\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e\u003cbr\u003eTake advantage of free shipping throughout Italy on orders over €199.99!\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"Lacerta","offers":[{"title":"Default Title","offer_id":52698967212248,"sku":"USA-LAC-HER125ND3","price":149.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/Lacerta-Prisma-di-Herschel-con-filtro-ND3-T2-1-25.jpg?v=1792162422","url":"https:\/\/www.giordanoastronomia.it\/en\/products\/usato-lacerta-prisma-di-herschel-nd3-t2-1-25","provider":"Giordano Astronomia","version":"1.0","type":"link"}