{"product_id":"william-optics-fluorostar-156-a-f156-rp37","title":"William Optics Fluorostar 156 with 3.7\" Rack \u0026 Pinion Focuser","description":"\u003ch2\u003eWilliam Optics Fluorostar 156\u003c\/h2\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%201.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp\u003eA premium apochromatic refractor designed for both avid stargazers and serious astrophotographers. This telescope features a 156mm aperture and a 1217mm focal length (f\/7.8), engineered for precision and durability. The Fluorostar 156 APO excels in delivering crisp, color-corrected visuals, thanks to its advanced triplet lens system incorporating FPL-53 glass and a Lanthanum element.\u003c\/p\u003e\n\u003cp\u003eRobust and reliable, the telescope boasts a sturdy steel objective cell that mitigates thermal expansion and maintains alignment under varying temperatures, ensuring consistent high performance. Aesthetically, it is available in three stunning finishes: vibrant red, elegant gold, and modern space grey, each complementing the sleek white tube.\u003c\/p\u003e\n\u003cp\u003eFor those eager to capture the cosmos, the Fluorostar 156 APO is equipped with a 3.7\" Rack \u0026amp; Pinion Focuser for seamless, precise focusing adjustments. This model comes standard with a unique Bahtinov Mask integrated into the dust cover for flawless focusing, three anodized CNC-made tube rings, and a robust Losmandy-type dovetail bar for secure mounting and enhanced versatility.\u003c\/p\u003e\n\u003cp\u003eWhether exploring celestial wonders or capturing them for posterity, the William Optics Fluorostar 156 APO stands as a superior choice for dedicated astronomers.\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%202.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%203.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%204.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%205.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%206.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/FLT156%207.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; color: #333333; font-family: 'Open Sans', Arial, 'Helvetica Neue', Helvetica, sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F156-RP37\/Note.jpg\" alt=\"\" style=\"margin: 0px; padding: 0px; max-width: 100%; height: auto; border: 0px; vertical-align: top;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"value\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"value\"\u003e\n\u003ctable style=\"box-sizing: border-box; border-color: #ececec; border-spacing: 0px; margin-bottom: 1em; width: 1050px; color: #777777; font-family: 'Roboto Condensed', sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ccolgroup style=\"box-sizing: border-box;\" width=\"198\"\u003e\u003c\/colgroup\u003e \u003ccolgroup style=\"box-sizing: border-box;\" width=\"107\"\u003e\u003c\/colgroup\u003e\n\u003ctbody style=\"box-sizing: border-box;\"\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eFocal Length:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e1217mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eDiameter:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e156mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eAperture:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003eF\/7.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eFocuser:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e3.7” Rack and Pinion focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eImage Circle:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e\u0026gt; Full Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eRecommended Flatteners:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003eFLAT7A, FLAT68III and FLAT8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eTube Length:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e1120mm (fully retracted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003e \u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e1330mm (fully extended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eTube Weight:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003e17kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eCamera Format:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003eAPS-C, Full Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\" height=\"21\" align=\"left\"\u003e\u003cb style=\"box-sizing: border-box; font-weight: bolder;\"\u003eInterchangable T-Mount:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\" align=\"left\"\u003eCanon EF, Nikon F, Sony E, Pentax, Micro four Thirds, Fuji FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics Fluorostar 156\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBahtinov Mask\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHandle Bar\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eD-Series Dovetail Plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/william-optics-warranty\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/william-optics-f-a-q\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eWilliam Optics F.A.Q\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Blue","offer_id":43744335823077,"sku":"WO-A-F156BU-RP37","price":12417.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":43744335855845,"sku":"WO-A-F156GD-RP37","price":12417.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":43744335888613,"sku":"WO-A-F156RD-RP37","price":12417.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":46439782777061,"sku":"WO-A-F156TG-RP37","price":12417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/william-optics-fluorostar-156-with-3-7-rack-and-pinion-focuser-astronomy-plus-1.webp?v=1690487433","url":"https:\/\/istronomyplus.com\/products\/william-optics-fluorostar-156-a-f156-rp37","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}