{"title":"Dall–Kirkham (DK) reflectors","description":"","products":[{"product_id":"orion-optics-uk-telescopio-dall-kirkham-dk-350-2380-odk14-ota","title":"Orion Optics UK Dall–Kirkham DK 350\/2380 ODK14 OTA Telescope","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;\"\u003eOrion Optics UK Dall–Kirkham Telescope DK 350\/2380 ODK14 OTA\u003c\/h1\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eTo find out more about the ODK series... \u003c\/p\u003e\n\n\u003cp\u003eThe ODK series (\u003cb\u003eOptimised Dall-Kirkhams\u003c\/b\u003e) offers an \u003cb\u003ef\/6.8 focal ratio\u003c\/b\u003e, which is fast enough for excellent deep-sky photography yet has enough focal length to provide high resolution for both photography and observation. \u003c\/p\u003e \u003cp\u003eThe tube is made of \u003cb\u003ecarbon fibre\u003c\/b\u003e in a \"sandwich design\". To ensure that the focal plane does not shift during long photographic exposures, it has been designed to be very rigid with a low coefficient of expansion. Since the tube is open and quite short, cooling times are significantly fast. \u003c\/p\u003e \u003cp\u003eTo assist in cooling the telescope, each model is equipped with \u003cb\u003ethree fans\u003c\/b\u003e, all positioned behind the main mirror\u003cb\u003e. \u003c\/b\u003e \u003c\/p\u003e \u003cp\u003eAccurate focusing across the entire ODK range is achieved with the \u003cb\u003e3\" ACU-3S Crayford focuser\u003c\/b\u003e with a 10:1 reduction ratio. \u003c\/p\u003e \u003cp\u003eGood images need good optics built into a reliable, stable, and precise construction. \u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey features\u003c\/h2\u003e\n\n\u003cp\u003eOrion Optics UK quality for a reliable and rewarding observation experience.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003eType: Reflector\u003c\/li\u003e\n\n\u003cli\u003eAperture (mm): 350\u003c\/li\u003e\n\n\u003cli\u003eFocal length (mm): 2380\u003c\/li\u003e\n\n\u003cli\u003eAperture ratio (f\/): 6.8\u003c\/li\u003e\n\n\u003cli\u003eMount type: without mount\u003c\/li\u003e\n\n\u003cli\u003eDesign principle: Dall–Kirkham telescope\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;\"\u003eOrion Optics UK\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;\"\u003eOrion Optics UK Dall–Kirkham Telescope DK 350\/2380 ODK14 OTA\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCategory\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTelescopes\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;\"\u003eReflector\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDesign principle\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDall–Kirkham telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e350\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2380\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture ratio (f\/)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e6.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eResolving power\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e0.39\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLimiting magnitude\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e14.5\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLight gathering capacity\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2500\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMax. useful magnification\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e700\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube diameter (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e400\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e700\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube material\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCarbon\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoating\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHilux\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube structure\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFull tube\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":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":51120695705816,"sku":"62651","price":8424.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/7aba962ff984501db15972b965ca70e4.jpg?v=1764069835"},{"product_id":"orion-optics-uk-telescopio-dall-kirkham-dk-400-2720-odk16-ota","title":"Orion Optics UK Dall–Kirkham DK 400\/2720 ODK16 OTA Telescope","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;\"\u003eOrion Optics UK Dall–Kirkham Telescope DK 400\/2720 ODK16 OTA\u003c\/h1\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eTo learn more about the ODK series... \u003c\/p\u003e\n\n\u003cp\u003eThe ODK series (\u003cb\u003eOptimised Dall-Kirkhams\u003c\/b\u003e) offers a \u003cb\u003efocal ratio of f\/6.8\u003c\/b\u003e, which is fast enough for excellent deep-sky photography and yet has sufficient focal length to achieve high resolution for both photography and observation. \u003c\/p\u003e \u003cp\u003eThe tube is made of \u003cb\u003ecarbon fiber\u003c\/b\u003e in a \"sandwich design.\" To ensure that the focal plane does not shift during long photographic exposures, it has been designed to be very rigid and with a low expansion coefficient. Since the tube is open and quite short, cooling times are significantly fast. \u003c\/p\u003e \u003cp\u003eTo aid in telescope cooling, each model is equipped with \u003cb\u003ethree fans\u003c\/b\u003e, all positioned behind the primary mirror\u003cb\u003e. \u003c\/b\u003e \u003c\/p\u003e \u003cp\u003eAccurate focusing of the entire ODK range is achieved with the \u003cb\u003e3\" ACU-3S Crayford focuser\u003c\/b\u003e with a 10:1 reduction ratio. \u003c\/p\u003e \u003cp\u003eGood images need good optics integrated into a reliable, stable, and precise construction. \u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey features\u003c\/h2\u003e\n\n\u003cp\u003eOrion Optics UK quality for a reliable and satisfying observation experience.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003eType: Reflector\u003c\/li\u003e\n\n\u003cli\u003eAperture (mm): 400\u003c\/li\u003e\n\n\u003cli\u003eFocal length (mm): 2720\u003c\/li\u003e\n\n\u003cli\u003eAperture ratio (f\/): 6.8\u003c\/li\u003e\n\n\u003cli\u003eMount type: without mount\u003c\/li\u003e\n\n\u003cli\u003eManufacturing technique: Dall–Kirkham telescope\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey 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;\"\u003eOrion Optics UK\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;\"\u003eOrion Optics UK Dall–Kirkham Telescope DK 400\/2720 ODK16 OTA\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCategory\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTelescopes\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;\"\u003eReflector\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eManufacturing technique\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDall–Kirkham telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e400\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2720\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture ratio (f\/)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e6.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eResolving power\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e0.35\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLimiting magnitude (mag)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e14.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLight-gathering capacity\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e3270\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMax. useful magnification\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e800\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube diameter (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e450\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e820\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube material\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCarbon\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoating\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHilux\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube structure\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFull tube\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 for orders over €199.99!\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":51120697508056,"sku":"62652","price":9694.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/eb4bdd43ef41beb72642172068ccfc61.jpg?v=1764069883"},{"product_id":"orion-optics-uk-telescopio-dall-kirkham-dk-250-1700-odk10-ota","title":"Orion Optics UK Dall–Kirkham DK 250\/1700 ODK10 OTA Telescope","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;\"\u003eOrion Optics UK Dall–Kirkham DK 250\/1700 ODK10 OTA Telescope\u003c\/h1\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eTo find out more about the ODK series... \u003c\/p\u003e\n\n\u003cp\u003eThe ODK series (\u003cb\u003eOptimised Dall-Kirkhams\u003c\/b\u003e) offers an \u003cb\u003ef\/6.8 focal ratio\u003c\/b\u003e, which is fast enough for excellent deep-sky photography while still providing enough focal length for high-resolution imaging and observation. \u003c\/p\u003e \u003cp\u003eThe tube is made of \u003cb\u003ecarbon fiber\u003c\/b\u003e in a \"sandwich design\". To ensure that the focal plane does not shift during long photographic exposures, it has been designed to be highly rigid with a low coefficient of expansion. Since the tube is open and relatively short, cooling times are significantly fast. \u003c\/p\u003e \u003cp\u003eTo assist with telescope cooling, every model is equipped with \u003cb\u003ethree fans\u003c\/b\u003e, all positioned behind the primary mirror. \u003c\/p\u003e \u003cp\u003eAccurate focusing across the entire ODK range is achieved with the \u003cb\u003e3\" ACU-3S Crayford focuser\u003c\/b\u003e with a 10:1 reduction ratio. \u003c\/p\u003e \u003cp\u003eGood images require good optics integrated into a reliable, stable, and precise construction. \u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey features\u003c\/h2\u003e\n\n\u003cp\u003eOrion Optics UK quality for a reliable and rewarding observation experience.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003eType: Reflector\u003c\/li\u003e\n\n\u003cli\u003eAperture (mm): 250\u003c\/li\u003e\n\n\u003cli\u003eFocal length (mm): 1700\u003c\/li\u003e\n\n\u003cli\u003eAperture ratio (f\/): 6.8\u003c\/li\u003e\n\n\u003cli\u003eMount type: without mount\u003c\/li\u003e\n\n\u003cli\u003eDesign principle: Dall–Kirkham telescope\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;\"\u003eOrion Optics UK\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;\"\u003eOrion Optics UK Dall–Kirkham DK 250\/1700 ODK10 OTA Telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCategory\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTelescopes\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;\"\u003eReflector\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDesign principle\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDall–Kirkham telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e250\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e1700\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture ratio (f\/)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e6.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eResolving power\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e0.55\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLimiting magnitude (mag)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e13.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLight-gathering capacity\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e1280\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMax. useful magnification\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e500\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube diameter (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e300\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e475\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube material\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCarbon\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoating\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHilux\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube structure\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFull tube\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":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":51120699539672,"sku":"62649","price":4956.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/154f2891d78eff33955b5337701b0cf4.jpg?v=1764069919"},{"product_id":"orion-optics-uk-telescopio-dall-kirkham-dk-300-2040-odk12-ota","title":"Orion Optics UK Dall–Kirkham DK 300\/2040 ODK12 OTA Telescope","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;\"\u003eOrion Optics UK Dall–Kirkham DK 300\/2040 ODK12 OTA Telescope\u003c\/h1\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eTo learn more about the ODK series... \u003c\/p\u003e\n\n\u003cp\u003eThe ODK (\u003cb\u003eOptimised Dall-Kirkham\u003c\/b\u003e) series offers a \u003cb\u003efocal ratio of f\/6.8\u003c\/b\u003e, which is fast enough for excellent deep-sky photography yet has enough focal length to achieve high resolution for both photography and observation. \u003c\/p\u003e \u003cp\u003eThe tube is made of \u003cb\u003ecarbon fiber\u003c\/b\u003e in a \"sandwich design.\" To ensure that the focal plane does not shift during long photographic exposures, it has been designed to be highly rigid and with a low coefficient of expansion. Since the tube is open and quite short, cooling times are significantly fast. \u003c\/p\u003e \u003cp\u003eTo assist in cooling the telescope, each model is equipped with \u003cb\u003ethree fans\u003c\/b\u003e, all positioned behind the main mirror. \u003c\/p\u003e \u003cp\u003eAccurate focusing for the entire ODK range is achieved with the \u003cb\u003e3\" ACU-3S Crayford focuser\u003c\/b\u003e with a 10:1 reduction ratio. \u003c\/p\u003e \u003cp\u003eGood images require good optics integrated into a reliable, stable, and precise construction. \u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey features\u003c\/h2\u003e\n\n\u003cp\u003eOrion Optics UK quality for a reliable and fulfilling observation experience.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003eType: Reflector\u003c\/li\u003e\n\n\u003cli\u003eAperture (mm): 300\u003c\/li\u003e\n\n\u003cli\u003eFocal length (mm): 2040\u003c\/li\u003e\n\n\u003cli\u003eAperture ratio (f\/): 6.8\u003c\/li\u003e\n\n\u003cli\u003eMount type: without mount\u003c\/li\u003e\n\n\u003cli\u003eOptical design: Dall–Kirkham telescope\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey 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;\"\u003eOrion Optics UK\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;\"\u003eOrion Optics UK Dall–Kirkham DK 300\/2040 ODK12 OTA Telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCategory\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTelescopes\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;\"\u003eReflector\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eOptical design\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eDall–Kirkham telescope\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e300\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2040\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture ratio (f\/)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e6.8\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eResolving power\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e0.46\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLimiting magnitude\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e14.2\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLight gathering capacity\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e1840\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMax. useful magnification\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e600\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube diameter (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e350\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube length (mm)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e615\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube material\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCarbon\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoating\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHilux\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTube construction\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFull tube\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":"Orion Optics UK","offers":[{"title":"Default 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