{"title":"Télescopes iOptron","description":"\u003cp\u003eLes télescopes iOptron sont des tubes optiques pensés surtout pour l'astrophotographie du ciel profond. Les Newton astrographes à f\/4, en 150, 200, 250 et 300mm, donnent des champs larges et rapides, tandis que la gamme Ritchey-Chrétien Photron, de 6\" à 16\", offre de longues focales pour les galaxies et les petites nébuleuses, dont un RC10 avec porte-oculaire 3\".\u003c\/p\u003e\u003cp\u003eLa gamme comprend aussi un tube optique MAK 150mm pour la Lune et les planètes et une lunette de 80mm.\u003c\/p\u003e","products":[{"product_id":"ioptron-photron-8-ritchey-chretien","title":"iOptron Photron 8\" Ritchey-Chrétien","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cbr\u003eLes télescopes de conception iOptron® Photron™ Ritchey-Chretien sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec quatre-vingt-dix-neuf pour cent de revêtements diélectriques réfléchissants. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur ou monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point avec d'autres conceptions de télescope. L'iOptron RC8 est livré avec un porte-oculaire Crayford à roulement linéaire à double vitesse de 2\". Trois bagues d'extension de porte-oculaire sont fournies pour une extension solide \"sans flexion\" afin de prendre toute mise au point arrière inutile. Son tube en acier est équipé de 10 des déflecteurs à lame de couteau pour diminuer le contraste, réduire la lumière parasite et améliorer l'instrument dans les utilisations visuelles et d'imagerie.\u003c\/p\u003e\n\u003cul\u003e\n\n \u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 200 mm (8\")\u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 1624 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/8\u003c\/li\u003e\n\n\u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003eSystème de déflecteurs multiples à lame de couteau\u003c\/li\u003e\n\n\u003cli\u003eMise au point Crayford à double vitesse de 2\"\u003c\/li\u003e\n\n\u003cli\u003eBase du chercheur et deux barres à queue d'aronde\u003c\/li\u003e\n\n\u003cli\u003eChercheur en option, diagonale et oculaire de 1,25\"\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968071430429,"sku":"IOP-6112","price":1649.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-Photron-8__65470.1673470512.1280.1280.jpg?v=1684348671"},{"product_id":"ioptron-photron-6-ritchey-chretien","title":"iOptron Photron 6\" Ritchey-Chrétien","description":"\u003c!-- more --\u003e \u003cp\u003e\u003cspan\u003eLes télescopes de conception iOptron® Photron™ Ritchey-Chrétien sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec quatre-vingt-dix-neuf pour cent de revêtements diélectriques réfléchissants. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur ou monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point avec d'autres conceptions de télescope. L'iOptron RC6 est livré avec un porte-oculaire Crayford à double vitesse de 2\". Trois bagues d'extension de porte-oculaire sont fournies pour une extension solide \"sans flexion\" afin de prendre en charge toute mise au point arrière inutile. Son tube en acier est équipé de déflecteurs à lame de couteau pour diminuer le contraste réduisant la lumière parasite, améliorant l'instrument à la fois dans les utilisations visuelles et d'imagerie.Un modèle RC6 est livré avec des plaques à queue d'aronde de style Vixen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 150 mm (6\") \u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 1370 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/9\u003c\/li\u003e\n\n\u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003eSystème de déflecteurs multiples à lame de couteau\u003c\/li\u003e\n\n\u003cli\u003ePorte-oculaire Crayford 2\" à double vitesse\u003c\/li\u003e\n\n\u003cli\u003eBase du chercheur et barre de queues d'aronde\u003c\/li\u003e\n\n\u003cli\u003eChercheur en option, diagonale et oculaire de 1,25\"\u003c\/li\u003e\n\n\u003cli\u003eMise au point électrique iOptron en option ( \u003ca href=\"http:\/\/www.ioptron.com\/product-p\/8451.htm\"\u003e#8451\u003c\/a\u003e )\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003eLe forfait comprend\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003e#6111\u003c\/strong\u003e 6\" RC OTA uniquement\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eOTA avec porte-oculaire Crayford à double vitesse de 2\"\u003c\/li\u003e\n\n\u003cli\u003eExtension de mise au point 2X25mm, 1X 50mm\u003c\/li\u003e\n\n\u003cli\u003eAdaptateur accessoire 1,25\"\u003c\/li\u003e\n\n\u003cli\u003eBarre à queue d'aronde Vixen \u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968081359133,"sku":"IOP-6111","price":781.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ioptron-photron-6__35063.1681926345.1280.1280.jpg?v=1684348859"},{"product_id":"ioptron-photron-14-ritchey-chretien","title":"iOptron Photron 14\" Ritchey-Chrétien","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan\u003eLa gamme Photon™ du télescope astrographe Ritchey-Chretien a été élargie avec l'ajout de quatre nouveaux modèles de tubes en treillis (10, 12, 14 et 16 pouces). Conçus pour les imageurs astro d'aujourd'hui, les télescopes RC à tube en treillis Photron™ fournissent une image claire et nette d'un bord à l'autre. Les modèles de tubes en treillis sont conçus pour perpétuer notre réputation de longue date en matière de création et de fabrication de supports de suivi solides, stables et précis, dans un télescope astrographe RC de haute qualité.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e\u003cspan\u003eLes télescopes RC à tube en treillis iOptron® Photron ™ sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec des revêtements diélectriques hautement réfléchissants maximisant la lumière atteignant votre oculaire ou votre appareil d'imagination. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur et monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point à partir d'autres conceptions de télescope. Avec une onde 1\/12e ou un miroir primaire supérieur, nos oscilloscopes RC offrent des images et des vues qui sont hors de ce monde.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e\u003cspan\u003eChaque instrument à tube en treillis Photron est équipé d'un porte-oculaire Crayford à roulement linéaire à double vitesse qui peut faciliter notre commande de mise au point électronique conforme à l'ASCOM en option. Trois bagues d'extension de mise au point sont fournies pour une extension solide \"sans flexion\" comme moyen de prendre toute mise au point arrière inutile. Son épine dorsale, composée de supports solides et légers en fibre de carbone, maintient l'optique fermement en place tout en minimisant le poids. Sa conception en plein air permet un refroidissement rapide, réduisant le \"temps d'attente\" avant utilisation. Photron™ by iOptron®, les télescopes à tube en treillis RC sont sûrs de répondre ou de dépasser les attentes des imageurs ou des observateurs les plus exigeants.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cspan\u003e\u003cstrong\u003eCaractéristiques\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 14\" (355 mm)\u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 2848 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/8\u003c\/li\u003e\n\n \u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003ePorte-oculaire Crayford 3\" à double vitesse\u003c\/li\u003e\n\n\u003cli\u003eMise au point électronique iOptron en option ( \u003ca href=\"http:\/\/www.ioptron.com\/product-p\/8451.htm\"\u003e#8451\u003c\/a\u003e )\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003eLe forfait comprend\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003e#6116\u003c\/strong\u003e 14\" Truss Tube RC OTA uniquement\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eOTA avec porte-oculaire Crayford à double vitesse de 3\"\u003c\/li\u003e\n\n\u003cli\u003eBagues d'extension de mise au point 2X 1 \"(25,4 mm), 1X 2\" (50,8 mm)\u003c\/li\u003e\n\n\u003cli\u003eSupport de batterie pour ventilateur de refroidissement\u003c\/li\u003e\n\n\u003cli\u003eCouvertures de miroir primaire et secondaire\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968081457437,"sku":"IOP-6116","price":9379.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-RC-Photron-14__83140.1682950317.1280.1280.jpg?v=1684348861"},{"product_id":"ioptron-photron-10-ritchey-chretien","title":"iOptron Photron 10\" Ritchey-Chrétien ","description":"\u003c!-- more --\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cdiv id=\"ProductDetail_ProductDetails_div\"\u003e\n\n\u003cspan id=\"product_description\" itemprop=\"description\"\u003eLa gamme Photon™ du télescope astrographe Ritchey-Chretien a été élargie avec l'ajout de quatre nouveaux modèles de tubes en treillis (10, 12, 14 et 16 pouces). Conçus pour les imageurs astro d'aujourd'hui, les télescopes RC à tube en treillis Photron™ fournissent une image claire et nette d'un bord à l'autre. Les modèles de tubes en treillis sont conçus pour perpétuer notre réputation de longue date en matière de création et de fabrication de supports de suivi solides, stables et précis, dans un télescope astrographe RC de haute qualité.\u003cbr\u003e\u003c\/span\u003e \u003cbr\u003eLes télescopes RC à tube en treillis iOptron® Photron ™ sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec des revêtements diélectriques hautement réfléchissants maximisant la lumière atteignant votre oculaire ou votre appareil d'imagination. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur et monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point à partir d'autres conceptions de télescope. Avec une onde 1\/12e ou un miroir primaire supérieur, nos oscilloscopes RC offrent des images et des vues qui sont hors de ce monde.\u003cbr\u003e \u003cbr\u003eChaque instrument à tube en treillis Photron est équipé d'un porte-oculaire Crayford à roulement linéaire à double vitesse qui peut faciliter notre commande de mise au point électronique conforme à l'ASCOM en option. Trois bagues d'extension de mise au point sont fournies pour une extension solide \"sans flexion\" comme moyen de prendre toute mise au point arrière inutile. Son épine dorsale, composée de supports solides et légers en fibre de carbone, maintient l'optique fermement en place tout en minimisant le poids. Sa conception en plein air permet un refroidissement rapide, réduisant le \"temps d'attente\" avant utilisation. Photron™ par iOptron®, les télescopes à tube en treillis RC sont sûrs de répondre ou de dépasser les attentes des imageurs ou des observateurs les plus exigeants.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv id=\"ProductDetail_ProductDetails_div2\"\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_Bottom.gif?v=1684348340\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_Bottom.gif?v=1684348341\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n \u003ctr\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_MidDiv.gif?v=1684348342\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_MidDiv.gif?v=1684348343\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\n\n\u003cstrong\u003eCaractéristiques\u003c\/strong\u003e\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 10\" (254 mm)\u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 2032 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/8\u003c\/li\u003e\n\n\u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003ePorte-oculaire Crayford 3\" à double vitesse\u003c\/li\u003e\n\n\u003cli\u003eMise au point électronique iOptron en option ( \u003ca href=\"http:\/\/www.ioptron.com\/product-p\/8451.htm\"\u003e#8451\u003c\/a\u003e )\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cbr\u003e\u003cstrong\u003eLe forfait comprend\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e#6114\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e 10\" Truss Tube RC OTA uniquement\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOTA avec porte-oculaire Crayford à double vitesse de 3\"\u003c\/li\u003e\n\n\u003cli\u003eBagues d'extension de mise au point 2X 1 \"(25,4 mm), 1X 2\" (50,8 mm)\u003c\/li\u003e\n\n\u003cli\u003eSupport de batterie pour ventilateur de refroidissement\u003c\/li\u003e\n\n\u003cli\u003eCouvertures de miroir primaire et secondaire\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968091549981,"sku":"IOP-6114","price":4477.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/6114-4__81737.1683224337.1280.1280.jpg?v=1684348984"},{"product_id":"ioptron-photron-12-ritchey-chretien","title":"iOptron Photron 12\" Ritchey-Chrétien ","description":"\u003c!-- more --\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e \u003cdiv id=\"ProductDetail_ProductDetails_div\"\u003e\n\n\u003cspan id=\"product_description\" itemprop=\"description\"\u003eLa gamme Photon™ du télescope astrographe Ritchey-Chretien a été élargie avec l'ajout de quatre nouveaux modèles de tubes en treillis (10, 12, 14 et 16 pouces). Conçus pour les imageurs astro d'aujourd'hui, les télescopes RC à tube en treillis Photron™ fournissent une image claire et nette d'un bord à l'autre. Les modèles de tubes en treillis sont conçus pour perpétuer notre réputation de longue date en matière de création et de fabrication de supports de suivi solides, stables et précis, dans un télescope astrographe RC de haute qualité.\u003cbr\u003e\u003c\/span\u003e \u003cbr\u003eLes télescopes RC à tube en treillis iOptron® Photron ™ sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec des revêtements diélectriques hautement réfléchissants maximisant la lumière atteignant votre oculaire ou votre appareil d'imagination. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur et monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point à partir d'autres conceptions de télescope. Avec une onde 1\/12e ou un miroir primaire supérieur, nos oscilloscopes RC offrent des images et des vues qui sont hors de ce monde.\u003cbr\u003e \u003cbr\u003eChaque instrument à tube en treillis Photron est équipé d'un porte-oculaire Crayford à roulement linéaire à double vitesse qui peut faciliter notre commande de mise au point électronique conforme à l'ASCOM en option. Trois bagues d'extension de mise au point sont fournies pour une extension solide \"sans flexion\" comme moyen de prendre toute mise au point arrière inutile. Son épine dorsale, composée de supports solides et légers en fibre de carbone, maintient l'optique fermement en place tout en minimisant le poids. Sa conception en plein air permet un refroidissement rapide, réduisant le \"temps d'attente\" avant utilisation. Photron™ par iOptron®, les télescopes à tube en treillis RC sont sûrs de répondre ou de dépasser les attentes des imageurs ou des observateurs les plus exigeants.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv id=\"ProductDetail_ProductDetails_div2\"\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_Bottom.gif?v=1684348340\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_Bottom.gif?v=1684348341\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n \u003ctr\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_MidDiv.gif?v=1684348342\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_MidDiv.gif?v=1684348343\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\n\n\u003cstrong\u003eCaractéristiques\u003c\/strong\u003e\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 12\" (304 mm)\u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 2432 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/8\u003c\/li\u003e\n\n\u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003ePorte-oculaire Crayford 3\" à double vitesse\u003c\/li\u003e\n\n\u003cli\u003eMise au point électronique iOptron en option ( \u003ca href=\"http:\/\/www.ioptron.com\/product-p\/8451.htm\"\u003e#8451\u003c\/a\u003e )\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cbr\u003e\u003cstrong\u003eLe forfait comprend\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e#6115\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e 12\" Truss Tube RC OTA uniquement\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOTA avec porte-oculaire Crayford à double vitesse de 3\"\u003c\/li\u003e\n\n\u003cli\u003eBagues d'extension de mise au point 2X 1 \"(25,4 mm), 1X 2\" (50,8 mm)\u003c\/li\u003e\n\n\u003cli\u003eSupport de batterie pour ventilateur de refroidissement\u003c\/li\u003e\n\n\u003cli\u003eCouvertures de miroir primaire et secondaire\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_Bottom.gif?v=1684348340\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_Bottom.gif?v=1684348341\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968091582749,"sku":"IOP-6115","price":5821.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/6115-2__65464.1683224704.1280.1280.jpg?v=1684348985"},{"product_id":"ioptron-photron-16-ritchey-chretien","title":"iOptron Photron 16\" Ritchey-Chrétien ","description":"\u003c!-- more --\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e \u003cdiv id=\"ProductDetail_ProductDetails_div\"\u003e\n\n\u003cspan id=\"product_description\" itemprop=\"description\"\u003eLa gamme Photon™ du télescope astrographe Ritchey-Chretien a été élargie avec l'ajout de quatre nouveaux modèles de tubes en treillis (10, 12, 14 et 16 pouces). Conçus pour les imageurs astro d'aujourd'hui, les télescopes RC à tube en treillis Photron™ fournissent une image claire et nette d'un bord à l'autre. Les modèles de tubes en treillis sont conçus pour perpétuer notre réputation de longue date en matière de création et de fabrication de supports de suivi solides, stables et précis, dans un télescope astrographe RC de haute qualité.\u003cbr\u003e\u003c\/span\u003e \u003cbr\u003eLes télescopes RC à tube en treillis iOptron® Photron ™ sont dotés de miroirs primaires et secondaires en quartz à faible dilatation thermique avec des revêtements diélectriques hautement réfléchissants maximisant la lumière atteignant votre oculaire ou votre appareil d'imagination. La conception optique RC offre des résultats sans coma, sans aberration sphérique et chromatique, parfaits pour l'imagerie couleur et monochrome. Un miroir primaire à position fixe élimine le décalage d'image qui se produit lors de la mise au point à partir d'autres conceptions de télescope. Avec une onde 1\/12e ou un miroir primaire supérieur, nos oscilloscopes RC offrent des images et des vues qui sont hors de ce monde.\u003cbr\u003e \u003cbr\u003eChaque instrument à tube en treillis Photron est équipé d'un porte-oculaire Crayford à roulement linéaire à double vitesse qui peut faciliter notre commande de mise au point électronique conforme à l'ASCOM en option. Trois bagues d'extension de mise au point sont fournies pour une extension solide \"sans flexion\" comme moyen de prendre toute mise au point arrière inutile. Son épine dorsale, composée de supports solides et légers en fibre de carbone, maintient l'optique fermement en place tout en minimisant le poids. Sa conception en plein air permet un refroidissement rapide, réduisant le \"temps d'attente\" avant utilisation. Photron™ par iOptron®, les télescopes à tube en treillis RC sont sûrs de répondre ou de dépasser les attentes des imageurs ou des observateurs les plus exigeants.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv id=\"ProductDetail_ProductDetails_div2\"\u003e\u003ctable class=\"colors_descriptionbox\" border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_Bottom.gif?v=1684348340\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"bottom\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_Bottom.gif?v=1684348341\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n \u003ctr\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Left_MidDiv.gif?v=1684348342\" alt=\"\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd align=\"left\" valign=\"top\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_DBox_Border_Right_MidDiv.gif?v=1684348343\" alt=\"\"\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"middle\" width=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_clear1x1.gif?v=1684348338\" alt=\"\" width=\"1\" height=\"1\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"100%\"\u003e\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\n\n\u003cstrong\u003eCaractéristiques\u003c\/strong\u003e\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOptique sans coma, sans aberration chromatique, sans aberration sphérique\u003c\/li\u003e\n\n\u003cli\u003eOuverture optique de 16\" (406 mm)\u003c\/li\u003e\n\n\u003cli\u003eDistance focale de 3250 mm\u003c\/li\u003e\n\n\u003cli\u003erapport focal f\/8\u003c\/li\u003e\n\n\u003cli\u003ePrimaire fixe\u003c\/li\u003e\n\n\u003cli\u003eMiroirs en quartz à faible dilatation thermique\u003c\/li\u003e\n\n\u003cli\u003ePorte-oculaire Crayford 3\" à double vitesse\u003c\/li\u003e\n\n\u003cli\u003eMise au point électronique iOptron en option ( \u003ca href=\"http:\/\/www.ioptron.com\/product-p\/8451.htm\"\u003e#8451\u003c\/a\u003e )\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cbr\u003e\u003cstrong\u003eLe forfait comprend\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e#6117\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e 16\" Truss Tube RC OTA uniquement\u003cbr\u003e\u003cul\u003e\n\n\u003cli\u003eOTA avec porte-oculaire Crayford à double vitesse de 3\"\u003c\/li\u003e\n\n\u003cli\u003eBagues d'extension de mise au point 2X 1 \"(25,4 mm), 1X 2\" (50,8 mm)\u003c\/li\u003e\n\n\u003cli\u003eSupport de batterie pour ventilateur de refroidissement\u003c\/li\u003e\n\n\u003cli\u003eCouvertures de miroir primaire et secondaire\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968091615517,"sku":"IOP-6117","price":12319.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/6117-2__46241.1683224893.1280.1280.jpg?v=1684348987"},{"product_id":"ioptron-150mm-f-4-imaging-newtonian","title":"iOptron 150mm f\/4 Imagerie Newtonienne","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cspan data-mce-fragment=\"1\"\u003eL'ensemble de tube optique newtonien (OTA) de 150 mm (environ 6\") f\/4 d'iOptron avec un rapport focal rapide F\/4 est parfait pour l'imagerie d'objets du ciel profond avec un reflex numérique ou une caméra d'astronomie dédiée. Le porte-oculaire de style Crayford de 2\", des anneaux de montage à double charnière, un viseur droit 8x50 et une plaque en queue d'aronde de style Vixen de 8\" le rendent prêt à être fixé à votre support et à commencer à l'utiliser.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Porte-oculaire de style Crayford 2\" à double vitesse avec adaptateur 1,5\" compatible iEAF\u003c\/li\u003e\n\n \u003cli\u003eMiroir primaire en verre optique BK7 avec une couche protectrice de quartz\u003c\/li\u003e\n\n\u003cli\u003e Lunette de recherche 8 x 50 mm\u003c\/li\u003e\n\n\u003cli\u003e Plaque à queue d'aronde de style Vixen de 8\" avec anneaux de montage solides sur toute la circonférence\u003c\/li\u003e\n\n\u003cli\u003e Capuchon anti-poussière avant\u003c\/li\u003e\n\n\u003cli\u003e Focuseur iOptron iEAF en option (#8453) \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"1\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd width=\"210\"\u003e Conception optique\u003c\/td\u003e\n\n\u003ctd width=\"400\"\u003e Newtonien\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Ouverture claire\u003c\/td\u003e\n\n\u003ctd\u003e 150mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Distance focale\u003c\/td\u003e\n\n\u003ctd\u003e 600 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Rapport focale\u003c\/td\u003e\n\n\u003ctd\u003e f\/4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Focuseur\u003c\/td\u003e\n\n\u003ctd\u003e Style Crayford à double vitesse\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Longueur OTA\u003c\/td\u003e\n\n\u003ctd\u003e 22 pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Diamètre extérieur\u003c\/td\u003e\n\n\u003ctd\u003e 7 pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Poids OTA\u003c\/td\u003e\n\n\u003ctd\u003e 9 livres. 10 oz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Tube d'extension\u003c\/td\u003e\n\n\u003ctd\u003e 2\" diamètre 35mm L\u003cbr\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e garantie\u003c\/td\u003e\n\n\u003ctd\u003e Limité à un an\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":47391546769693,"sku":"IOP-6311","price":641.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-150mm-imaging-newtonian.jpg?v=1704394648"},{"product_id":"ioptron-200mm-f-4-imaging-newtonian","title":"iOptron 200mm f\/4 Imagerie Newtonienne ","description":"\u003c!-- more --\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eL'ensemble de tube optique newtonien (OTA) de 200 mm (environ 7,9\") f\/4 d'iOptron avec un rapport focal rapide F\/4 est parfait pour l'imagerie d'objets du ciel profond avec un reflex numérique ou une caméra d'astronomie dédiée. Le porte-oculaire de style Crayford de 2\", des anneaux de montage à double charnière, un viseur droit 8x50 et une plaque en queue d'aronde de style Vixen de 8\" le rendent prêt à être fixé à votre support et à commencer à l'utiliser.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Porte-oculaire de style Crayford 2\" à double vitesse avec adaptateur 1,5\" compatible iEAF\u003c\/li\u003e\n\n\u003cli\u003e Miroir primaire en verre optique BK7 avec une couche protectrice de quartz\u003c\/li\u003e\n\n \u003cli\u003eLunette de recherche 8 x 50 mm\u003c\/li\u003e\n\n\u003cli\u003e Plaque à queue d'aronde de style Vixen de 13\" avec anneaux de montage solides sur toute la circonférence\u003c\/li\u003e\n\n\u003cli\u003e Capuchon anti-poussière avant\u003c\/li\u003e\n\n\u003cli\u003e Focuseur iOptron iEAF en option (#8453) \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd width=\"210\" data-mce-fragment=\"1\"\u003e Conception optique\u003c\/td\u003e\n\n\u003ctd width=\"400\" data-mce-fragment=\"1\"\u003e Newtonien\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Ouverture claire\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 200 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Distance focale\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 800 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Rapport focale\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e f\/4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Focuseur\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Style Crayford à double vitesse\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Longueur OTA\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 27,75 pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Diamètre extérieur\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 9,5 pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Poids OTA\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 20 livres. 6 onces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Tube d'extension\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 2\" diamètre 35mm \u003cbr data-mce-fragment=\"1\"\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e garantie\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Limité à un an \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cbr\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":47391575441693,"sku":"IOP-6312","price":879.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-200mm-Imaging-Newtonian.jpg?v=1704921679"},{"product_id":"ioptron-250mm-f-4-imaging-newtonian","title":"iOptron 250mm f\/4 Imagerie Newtonienne ","description":"\u003c!-- more --\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eL'ensemble de tube optique newtonien (OTA) de 250 mm (environ 9,8\") f\/4 d'iOptron avec un rapport focal rapide F\/4 est parfait pour l'imagerie d'objets du ciel profond avec un reflex numérique ou une caméra d'astronomie dédiée. Le porte-oculaire de style Crayford de 3,25\", des anneaux de montage à double charnière, un viseur droit 8x50 et une plaque en queue d'aronde de style Vixen de 13\" le rendent prêt à être fixé à votre support et à commencer à l'utiliser.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Porte-oculaire de style Crayford 2\" à double vitesse avec adaptateur 1,5\" compatible iEAF\u003c\/li\u003e\n\n\u003cli\u003e Miroir primaire en verre optique BK7 avec une couche protectrice de quartz\u003c\/li\u003e\n\n\u003cli\u003e Lunette de recherche 8 x 50 mm\u003c\/li\u003e\n\n \u003cli\u003ePlaque à queue d'aronde de style Vixen de 13\" avec anneaux de montage solides sur toute la circonférence\u003c\/li\u003e\n\n\u003cli\u003e Capuchon anti-poussière avant\u003c\/li\u003e\n\n\u003cli\u003e Focuseur iOptron iEAF en option (#8453) \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\" data-mce-fragment=\"1\"\u003e\n\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e\n\n\u003cdiv id=\"ProductDetail_TechSpecs_div\" data-mce-fragment=\"1\"\u003e\n\n\u003cbr data-mce-fragment=\"1\"\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd width=\"210\" data-mce-fragment=\"1\"\u003e Conception optique\u003c\/td\u003e\n\n\u003ctd width=\"400\" data-mce-fragment=\"1\"\u003e Newtonien\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Ouverture claire\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 250 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Distance focale\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 1000mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Rapport focale\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e f\/4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Focuseur\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Style Crayford à double vitesse\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Longueur OTA\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Diamètre extérieur\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 12 pouces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Poids OTA\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 34 livres. 1 once\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Tube d'extension\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e 2\" diamètre 35mm L \u003cbr data-mce-fragment=\"1\"\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-mce-fragment=\"1\"\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e garantie\u003c\/td\u003e\n\n\u003ctd data-mce-fragment=\"1\"\u003e Limité à un an \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cbr\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":47391767822621,"sku":"IOP-6313","price":1119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-250mm-Imaging-Newtonian.jpg?v=1704921597"},{"product_id":"ioptron-300mm-f-4-imaging-newtonian","title":"iOptron 300mm f\/4 Imagerie Newtonienne ","description":"\u003c!-- more --\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eL'ensemble de tube optique newtonien (OTA) de 300 mm (environ 11,8\") f\/4 d'iOptron avec un rapport focal rapide F\/4 est parfait pour l'imagerie d'objets du ciel profond avec un reflex numérique ou une caméra d'astronomie dédiée. Le porte-oculaire de style Crayford de 3,25\", des anneaux de montage à double charnière, un viseur droit 8x50 et une plaque en queue d'aronde de style Losmandy de 14\" le rendent prêt à être fixé à votre support et à commencer à l'utiliser.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Porte-oculaire de style Crayford 2\" à double vitesse avec adaptateur 1,5\" compatible iEAF\u003c\/li\u003e\n\n\u003cli\u003e Miroir primaire en verre optique BK7 avec une couche protectrice de quartz\u003c\/li\u003e\n\n\u003cli\u003e Lunette de recherche 8 x 50 mm\u003c\/li\u003e\n\n \u003cli\u003ePlaque à queue d'aronde de style Losmandy de 14\" avec anneaux de montage solides sur toute la circonférence\u003c\/li\u003e\n\n\u003cli\u003e Capuchon anti-poussière avant\u003c\/li\u003e\n\n\u003cli\u003e Focuseur iOptron iEAF en option (#8453) \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cbr\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":47391792136477,"sku":"IOP-6315","price":1539.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-300mm-Imaging-Newtonian.jpg?v=1704921633"},{"product_id":"ioptron-6101","title":"iOptron MAK 150mm Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e150mm Rumak-style Maksutov-Cassegrain Optics\u003c\/li\u003e\n\u003cli\u003e1800mm Focal Length\u003c\/li\u003e\n\u003cli\u003ef\/12 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e0.77 Arc Second Resolving Power\u003c\/li\u003e\n\u003cli\u003e13.4 lbs Tube Weight\u003c\/li\u003e\n\u003cli\u003eDual-Speed Focuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eMAK 150mm Telescope OTA\u003c\/h2\u003e\n\u003cp\u003eThe MAK 150mm optical tube delivers high-contrast, high-magnification views through its 150mm Rumak-style Maksutov-Cassegrain optical system. Its long 1800mm focal length produces an f\/12 focal ratio ideal for planetary and double-star observation, capable of reaching a theoretical resolving power of 0.77 arc seconds. With a dual-speed focuser for critical adjustments and a tube weight of just 13.4 lbs, this OTA provides serious planetary imaging capabilities in a compact package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRumak-Maksutov Optics: 1800mm Focal Length at f\/12\u003c\/h3\u003e\n\u003cp\u003eThis telescope's Rumak-Maksutov design uses a separate secondary mirror, distinct from the central aluminized spot on a standard Maksutov corrector. This provides an additional degree of freedom for optical correction, resulting in a flatter field of view and better-corrected images, especially critical for astrophotography. The native 1800mm focal length and f\/12 ratio are engineered for high power, allowing you to achieve the 300X maximum magnification with common eyepieces to study fine details on Jupiter, Saturn, and Mars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePlanetary Detail at 0.77 Arc Second Resolution\u003c\/h3\u003e\n\u003cp\u003eWith a diffraction-limited resolving power of 0.77 arc seconds, the MAK 150mm has the optical potential to split tight double stars and reveal intricate planetary features under steady skies. This level of resolution makes it possible to discern the Cassini Division in Saturn's rings, resolve individual craterlets on the Moon, and track storm systems in Jupiter's cloud belts. The optical system can detect stars down to a visual limiting magnitude of 12.8, pulling in faint moons around gas giants and the central stars of planetary nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eImaging-Ready with a Dual-Speed Focuser\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect focus at 1800mm is critical, and the included dual-speed focuser provides the fine control necessary for sharp planetary imaging. The coarse focus knob gets you close, while the fine-adjustment knob allows for precise, minute changes without image shift. For convenience and protection, a twist-lock aluminum dew shield is integrated, extending the tube length to 27 1\/8 inches to block stray light and delay the formation of dew on the corrector plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdapts to 1.25\", 2\", and SCT Standards\u003c\/h3\u003e\n\u003cp\u003eThe MAK 150mm is equipped to handle a wide array of accessories right out of the box. It includes a 2-inch to 1.25-inch compression ring adapter for using standard eyepieces and an adapter ring that allows you to attach accessories designed for Schmidt-Cassegrain telescopes (SCTs). For astrophotography, a T-ring adapter is also included, providing a direct, secure connection for your DSLR or dedicated astronomy camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMAK 150mm vs. a 6-inch SCT: Focal Ratio and Field Flatness\u003c\/h3\u003e\n\u003cp\u003eWhen choosing a 150mm-class catadioptric, the main alternative is often a 6-inch Schmidt-Cassegrain. The SCT offers a faster f\/10 focal ratio, better suited for a wider range of deep-sky objects. However, the MAK 150mm's advantages lie in planetary and lunar observing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e The MAK's f\/12 focal ratio provides higher native magnification for any given eyepiece compared to an f\/10 SCT, often yielding sharper, higher-contrast planetary views without needing a Barlow lens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Flatness:\u003c\/strong\u003e The Rumak optical design in this MAK provides a flatter, better-corrected field than a standard SCT, which suffers from field curvature. This results in sharper stars toward the edge of the frame, a key benefit for imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral Obstruction:\u003c\/strong\u003e Maksutov-Cassegrains typically have a smaller central obstruction than SCTs, which translates directly to improved image contrast, making subtle planetary details easier to see.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is a Rumak-Maksutov and how does it benefit the MAK 150mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003eRumak-Maksutov\u003c\/strong\u003e is a specialized catadioptric design that uses a separate, curved secondary mirror instead of the simple aluminized spot found on the back of the corrector plate in a standard Gregory-Maksutov. This gives optical designers more control over correcting for aberrations, typically resulting in a flatter field of view and sharper stars away from the center of the image compared to other compact designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the MAK 150mm perform on Jupiter with its 1800mm focal length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1800mm focal length is ideal for observing Jupiter. With a moderate eyepiece (e.g., 9-12mm), you can easily reach magnifications of 150-200x, which is perfect for resolving Jupiter's main cloud belts, the Great Red Spot, and the Galilean moons. On a night of good seeing, the 0.77 arc second resolving power allows you to push magnification toward 300x to see finer details like smaller ovals and festoons within the cloud bands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the MAK 150mm a good telescope for deep-sky objects like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the MAK 150mm excels at high-magnification targets, its long f\/12 focal ratio results in a narrow field of view, making it less ideal for very large deep-sky objects like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000). It is, however, excellent for smaller, brighter deep-sky targets such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobular Clusters:\u003c\/strong\u003e Resolving individual stars in the cores of clusters like the Hercules Cluster (M13).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary Nebulae:\u003c\/strong\u003e Observing details in objects like the Ring Nebula (M57) and the Dumbbell Nebula (M27).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBright Galaxies:\u003c\/strong\u003e Viewing the core regions of galaxies like Bode's Galaxy (M81).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount do I need for the 13.4 lb MAK 150mm OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a tube weight of \u003cstrong\u003e13.4 lbs\u003c\/strong\u003e, the MAK 150mm requires a sturdy equatorial or alt-azimuth mount. For visual use, a mount with a payload capacity of at least 20-25 lbs is recommended to ensure stability. For long-exposure astrophotography, a robust German Equatorial Mount in the 30-40 lb payload class (like an iOptron GEM28 or CEM26) would be a more appropriate choice to handle the telescope and additional imaging gear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my existing 2-inch Schmidt-Cassegrain accessories with the MAK 150mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The MAK 150mm includes an \u003cstrong\u003eAdapter Ring for Schmidt-Cassegrain Accessories\u003c\/strong\u003e. This allows you to attach devices that use the standard SCT thread, such as focal reducers, off-axis guiders, and specific visual backs, making it highly compatible with the most popular accessory ecosystem on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a dual-speed focuser important on an f\/12 telescope like the MAK 150mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTelescopes with long focal ratios like f\/12 have a very narrow \"critical focus zone,\" meaning even a tiny error in focusing can soften the image. A \u003cstrong\u003edual-speed focuser\u003c\/strong\u003e provides a fine-adjustment knob (typically 10:1 ratio) that moves the focuser much more slowly than the coarse knob. This precision is essential for achieving the sharpest possible focus when doing high-magnification visual observation or planetary imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eCatadioptric Rumak style Maksutov-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1800mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolving Power\u003c\/td\u003e\n\u003ctd\u003e0.77 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Limiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e12.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHighest Magnification\u003c\/td\u003e\n\u003ctd\u003e300X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eDual speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e8x50 with finder ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDew Shield\u003c\/td\u003e\n\u003ctd\u003eTwist-lock aluminum shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters\u003c\/td\u003e\n\u003ctd\u003e2” to 1.25” compression ring adapter, T-ring adapter, Adapter Ring for Schmidt-Cass Accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e21.75” (Without dew shield) | 27.125” (With dew shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Weight\u003c\/td\u003e\n\u003ctd\u003e13.4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e22 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e32 x 14 x 12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMAK 150mm Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e8x50 Finder Scope with Mounting Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTwist-Lock Aluminum Dew Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Compression Ring Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdapter Ring for Schmidt-Cassegrain Accessories\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eT-Ring Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron_MAK150_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Telescope Warranty and 1-Year Accessory Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917293220125,"sku":"IOP-6101","price":1049.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-MAK-150mm-1_8947f705-e7a8-46f4-9e3f-3b65b6fe39b6.jpg?v=1789142076"},{"product_id":"ioptron-6113","title":"iOptron Photron™ 10-inch Ritchey-Chrétien Telescope (RC10) 3'' Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e250mm (10-inch) Ritchey-Chrétien Optical Design\u003c\/li\u003e\n\u003cli\u003e2000mm Focal Length at f\/8\u003c\/li\u003e\n\u003cli\u003e0.46 arc second Resolving Power\u003c\/li\u003e\n\u003cli\u003e3-inch Dual Speed Focuser\u003c\/li\u003e\n\u003cli\u003e35 lb Steel Tube with Three Cooling Fans\u003c\/li\u003e\n\u003cli\u003eDual Losmandy-style Dovetail Bars\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePhotron™ 10-inch Ritchey-Chrétien Telescope (RC10) 3'' Focuser\u003c\/h2\u003e\n\u003cp\u003eThe Photron™ RC10 combines a large 250mm aperture with a 2000mm focal length in a native f\/8 Ritchey-Chrétien optical design, delivering a coma-free imaging field ideal for modern sensors. This astrograph achieves a theoretical resolving power of 0.46 arc seconds, enabling you to capture fine details in distant galaxies and planetary nebulae. The robust imaging platform is built around a heavy-duty 3-inch dual-speed focuser and a 35 lb steel optical tube equipped with three primary mirror cooling fans for rapid thermal stabilization.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e10-inch f\/8 Ritchey-Chrétien Optics: 0.46 Arc Second Resolution\u003c\/h3\u003e\n\u003cp\u003eThe Ritchey-Chrétien configuration uses hyperbolic primary and secondary mirrors to eliminate coma, an optical aberration that distorts stars at the edge of the field in other reflector designs. With a 250mm clear aperture and 2000mm focal length, the Photron RC10 provides the image scale necessary for resolving small targets like the Whirlpool Galaxy (M51) or the Ring Nebula (M57). The system's 0.46 arc second resolution and 14.7 limiting magnitude give you the power to pull in faint details from your backyard observatory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3-inch Dual-Speed Focuser: Support for Heavy Imaging Payloads\u003c\/h3\u003e\n\u003cp\u003eA key feature of the RC10 is its massive 3-inch dual-speed focuser, a significant upgrade for serious imagers. This large-format focuser minimizes vignetting on full-frame and larger sensors and provides the rigidity to carry heavy camera packages, filter wheels, and off-axis guiders without flexure. The fine-focus knob is critical for achieving sharp stars at the 2000mm focal length. To accommodate a wide range of cameras and accessories, the telescope includes two 1-inch and one 2-inch extension tubes to correctly set the back focus distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e35 lb Steel Tube Construction with Active Cooling\u003c\/h3\u003e\n\u003cp\u003eThe Photron RC10 is built with a steel tube, which provides excellent rigidity and thermal stability, though it contributes to a total OTA weight of 35 lbs. To combat thermal currents inside the closed tube, three built-in fans are mounted behind the primary mirror to accelerate cooling to ambient temperature, reducing tube seeing and ensuring the sharpest possible images. The OTA is equipped with two Losmandy-style dovetail bars—one for mounting to your equatorial mount and a second on top for attaching guide scopes, computers, or other accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePhotron RC10 vs. Other 10\" RCs: Focuser and Tube Material\u003c\/h3\u003e\n\u003cp\u003eWhen comparing the Photron RC10 to other 10-inch Ritchey-Chrétien telescopes, such as those from GSO or Astro-Tech, the primary differences lie in the focuser and tube material.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitor Advantage:\u003c\/strong\u003e Many competing 10\" RCs are available with carbon fiber tubes. Carbon fiber is lighter than steel and has a lower coefficient of thermal expansion, which can reduce the need for focus adjustments during temperature drops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotron RC10 Advantage:\u003c\/strong\u003e The included 3-inch focuser on the Photron is a significant upgrade over the 2-inch focusers commonly found on standard models. For imagers using large sensors or heavy equipment, the larger, more robust focuser of the RC10 is a decisive benefit that prevents both vignetting and mechanical flex.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount does the Photron RC10 require?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Photron RC10 has an optical tube weight of \u003cstrong\u003e35 lbs\u003c\/strong\u003e. For astrophotography, you should add the weight of your camera, guide scope, and all accessories, which can easily bring the total payload to 40-45 lbs. A mount with a payload capacity of at least 50-60 lbs, such as an iOptron CEM60\/70 or Celestron CGX, is recommended for stable, long-exposure imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Photron RC10 good for imaging small galaxies like the Sombrero Galaxy (M104)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The \u003cstrong\u003e2000mm focal length\u003c\/strong\u003e provides the ideal image scale for capturing details in smaller deep-sky objects like M104 or planetary nebulae like the Dumbbell Nebula (M27). The coma-free field ensures that stars across the frame remain sharp, highlighting the structure of your target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Photron RC10 need a field flattener or reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Ritchey-Chrétien design is inherently free of coma, it does have natural field curvature. For cameras with smaller sensors (APS-C or smaller), this may not be noticeable. However, for full-frame or larger sensors, a dedicated field flattener is recommended to achieve perfectly sharp stars across the entire image. Reducers are also available to shorten the focal ratio for wider-field imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Photron RC10 for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can, but it is not its primary design purpose. RCs are optimized for photographic use. The large \u003cstrong\u003e110mm secondary mirror\u003c\/strong\u003e creates a significant central obstruction, which reduces image contrast compared to a Newtonian or refractor of similar aperture. While planets and bright objects will be sharp, it will not deliver the same high-contrast views as a dedicated visual telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are there three extension tubes included with the Photron RC10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eRitchey-Chrétien telescopes have a long back focus distance to accommodate various imaging accessories. The included \u003cstrong\u003e1-inch (x2) and 2-inch (x1) extension tubes\u003c\/strong\u003e are used to bridge the gap between the focuser and your camera's sensor. The combination you use will depend on your specific imaging train, whether you're using a DSLR, a cooled CMOS camera, an off-axis guider, or a filter wheel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow difficult is it to collimate the Photron RC10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCollmating an RC is more involved than a Newtonian or SCT because both the primary and secondary mirrors are adjustable and hyperbolic. It requires patience and precision, and typically involves using a Cheshire eyepiece and a high-quality laser collimator. However, once collimated, a well-built RC like the Photron RC10 tends to hold its alignment very well.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eRitchey-Chretien\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e250mm (10\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e2000mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolving Power\u003c\/td\u003e\n\u003ctd\u003e0.46 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e14.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHighest Useful Magnification\u003c\/td\u003e\n\u003ctd\u003e295X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Mirror Diameter\u003c\/td\u003e\n\u003ctd\u003e110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e3\" dual speed focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Drawtube Size\u003c\/td\u003e\n\u003ctd\u003e3.3”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Mirror Cooling\u003c\/td\u003e\n\u003ctd\u003eThree built-in fans (battery holder included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Material\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e28.4”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Weight\u003c\/td\u003e\n\u003ctd\u003e35 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Dovetail (Bottom)\u003c\/td\u003e\n\u003ctd\u003eLosmandy-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Dovetail (Top)\u003c\/td\u003e\n\u003ctd\u003eLosmandy-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinderscope Base\u003c\/td\u003e\n\u003ctd\u003eInstalled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e48 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e34.5\" x 17\" x 16.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePhotron 10\" f\/8 Ritchey-Chrétien OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Extension Tube\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1\" Extension Tube\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Compression Ring Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"#\" rel=\"noopener\" target=\"_blank\"\u003ePhotron Manufacturer's Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917293351197,"sku":"IOP-6113","price":4043.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Photron-10-inch-Ritchey-Chr-tien-Telescope-RC10-3-Focuser-1_a6043c6d-be43-498f-baa2-bcaa743362b9.jpg?v=1789142084"},{"product_id":"ioptron-8710","title":"iOptron 80mm Refractor","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e80mm Achromatic Refractor Optics\u003c\/li\u003e\n\u003cli\u003e400mm Focal Length (f\/5)\u003c\/li\u003e\n\u003cli\u003eLightweight 2.2 lbs Optical Tube\u003c\/li\u003e\n\u003cli\u003eIncludes 25mm and 9mm 1.25\" Eyepieces\u003c\/li\u003e\n\u003cli\u003e45º Erect Image Diagonal for Day and Night Viewing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003e80mm Refractor\u003c\/h2\u003e\n      \u003cp\u003eThe 80mm Refractor combines an 80 mm aperture with a short 400 mm focal length for a fast f\/5 optical system designed for wide-field stargazing and easy portability. This compact optical tube assembly delivers a resolving power of 1.4 arc seconds and weighs only 2.2 lbs, making it an excellent grab-and-go instrument for sweeping the Milky Way or for daytime terrestrial viewing.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e80mm f\/5 Optics: A Portable Window for Wide-Field Views\u003c\/h3\u003e\n      \u003cp\u003eWith its 80 mm aperture and fast f\/5 focal ratio, this refractor excels at low-power, wide-field observation. Using the included 25mm eyepiece, you can frame large open star clusters like the Pleiades (M45) or scan the rich star fields of Cygnus. Its compact size and 2.2 lbs weight make it easy to mount on any light-duty photo tripod or astronomical mount for quick sessions.\u003c\/p\u003e\n      \u003cp\u003eAs an achromatic refractor, especially at a fast f\/5 ratio, this design prioritizes brightness and field of view over perfect color correction. On very bright objects like the Moon, Jupiter, or brilliant stars like Vega, you will notice some chromatic aberration, or \"false color,\" which is a characteristic trade-off for this portable and affordable optical design.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eDay and Night Ready: 45º Diagonal for Terrestrial and Celestial Use\u003c\/h3\u003e\n      \u003cp\u003eThis refractor includes a 45º erect image diagonal, a key component that makes it suitable for both astronomical and terrestrial viewing. Unlike standard 90º star diagonals that show a mirror-reversed image, the 45º diagonal provides an image that is correctly oriented both up-down and left-right. This makes it intuitive to use for birdwatching, landscape viewing, or tracking boats on the water.\u003c\/p\u003e\n      \u003cp\u003eThe package comes with two 1.25\" eyepieces to get you started: a 25mm for low-power, wide-field scanning and a 9mm for higher magnification views of the Moon's craters or Jupiter's moons. The simple and reliable 1.25” rack-and-pinion focuser allows for easy and smooth focusing for any target, day or night.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Andromeda Galaxy (M31) look through this 80mm Refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWith the included 25mm eyepiece, the 80mm Refractor provides a wide field of view that can frame the entirety of the Andromeda Galaxy's bright core and a significant portion of its surrounding dust lanes from a dark sky site. Its fast f\/5 optics make it well-suited for observing large, diffuse objects like M31.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I see the rings of Saturn with this 80mm Refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, using the included 9mm eyepiece, you will be able to see Saturn's rings as distinct from the planet itself. While an 80mm telescope won't resolve fine detail like the Cassini Division, the iconic shape of the ringed planet will be clearly visible.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is a 45º erect image diagonal and why is it useful for this 80mm refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e45º erect image diagonal\u003c\/strong\u003e corrects the image to be both upright and non-reversed (left-to-right correct). This is essential for daytime terrestrial viewing, such as birdwatching or observing scenery, where a reversed image would be disorienting. It also provides a more comfortable viewing angle than looking straight through the telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see color fringing (chromatic aberration) with this 80mm refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, as an achromatic refractor with a fast f\/5 focal ratio, some chromatic aberration is expected. You will likely notice a slight purple or yellow halo around very bright objects like the Moon, Venus, Jupiter, and the brightest stars. This is a normal optical characteristic for this type of telescope design.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount do I need for this 80mm Refractor OTA?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWeighing only \u003cstrong\u003e2.2 lbs\u003c\/strong\u003e, this optical tube assembly (OTA) is very lightweight and versatile. It can be used on a sturdy photographic tripod with a fluid head for simple terrestrial and wide-field sky viewing. For more serious astronomical use, a light-duty alt-azimuth mount like an iOptron Cube or Sky-Watcher AZ-GTi would be an excellent choice.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 80mm refractor a good choice for a beginner?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. Its light weight, simple rack-and-pinion focuser, and included accessories make it very easy to set up and use. The ability to use it for both daytime land viewing and nighttime stargazing provides a great introduction to telescopes without the complexity of larger, more specialized instruments.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eAchromatic Refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eResolving Power\u003c\/td\u003e\n\u003ctd\u003e1.4 arc sec\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e1.25” rack-and-pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEyepiece Adapter\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIncluded Eyepiece 1\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIncluded Eyepiece 2\u003c\/td\u003e\n\u003ctd\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIncluded Diagonal\u003c\/td\u003e\n\u003ctd\u003e45º erect\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOTA Weight\u003c\/td\u003e\n\u003ctd\u003e2.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e18 x 7 x 7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e80mm f\/5 Refractor OTA\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e25mm Eyepiece\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e9mm Eyepiece\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e45º Erect Image Diagonal\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eLens Cap\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cp\u003eFor warranty information, please refer to the documentation provided by the manufacturer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917293777181,"sku":"IOP-8710","price":181.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-80mm-Refractor-1_a45219d1-ad26-406f-ae32-9d7211c92ace.jpg?v=1789142111"}],"url":"https:\/\/davidastro.com\/fr-us\/collections\/ioptron-telescopes.oembed","provider":"David Astro","version":"1.0","type":"link"}