{"title":"William Optics APO Refractors","description":"\u003cp\u003eWilliam Optics refractors here include the Zenithstar 61 II and 81 WIFD, the Gran Turismo 71 and 81 (Mark IV and WIFD), and the Fluorostar line in 91, 120, 132 and 156mm. The GT71 is supplied with a 0.8x reducer and camera rotator, and the Fluorostar 132 with a 3.7-inch rack-and-pinion focuser. Part of \u003ca href=\"\/collections\/refractors\"\u003eRefractor Telescopes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"william-optics-gran-turismo-71-apo-refractor-with-0-8x-reducer","title":"William Optics Gran Turismo 71 APO Refractor with 0.8x Reducer and Camera rotator RED","description":"\u003cp style=\"margin: 0px 0px 1rem; padding: 0px; color: #333333; font-family: Roboto, Arial,;\"\u003eThe William Optics GT71 Triplet Air-Spaced APOL Telescope in Gold with 0.8x Reducer and CAA (Camera Angle Adjuster) \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e71mm aperture f\/5.9 imaging refractor telescope\u003c\/li\u003e\n\u003cli\u003etriplet w\/ FPL-53 glass for apochromatic performance\u003c\/li\u003e\n\u003cli\u003ecovers full frame imaging circle (44mm)\u003c\/li\u003e\n\u003cli\u003e2.5\" dual speed WO R\u0026amp; P focuser\u003c\/li\u003e\n\u003cli\u003ewhite with gold trim\u003c\/li\u003e\n\u003cli\u003eweight is 2.2 kg (4.85 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eThis package comes with:\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e2 mounting rings\u003c\/li\u003e\n\u003cli\u003edust cover with built-in Bahtinov mask\u003c\/li\u003e\n\u003cli\u003eFlat6AIII field flattener\u003c\/li\u003e\n\u003cli\u003eadjustable\/retractable dew shield\u003c\/li\u003e\n\u003cli\u003evixen-style dovetail plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"description\" class=\"data item content\" role=\"tabpanel\" data-role=\"content\" aria-labelledby=\"tab-label-description\" aria-hidden=\"false\"\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\" data-decoded=\"true\"\u003e\n\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-1.jpg\" alt=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-2.jpg\" alt=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-3.jpg\" alt=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-4.jpg\" alt=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-5.jpg\" alt=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71-6.jpg\" alt=\"\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tab-label-additional\" class=\"data item title\" tabindex=\"0\" role=\"tab\" aria-labeledby=\"tab-label-additional-title\" data-role=\"collapsible\" data-collapsible=\"true\" aria-controls=\"additional\" aria-selected=\"false\" aria-expanded=\"false\"\u003e\u003ca id=\"tab-label-additional-title\" class=\"data switch\" tabindex=\"-1\" href=\"https:\/\/williamoptics.com\/products\/telescope\/gran-turismo\/all-new-gran-turismo-71-apo-refractor#additional\" data-toggle=\"switch\"\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv id=\"additional\" class=\"data item content\" role=\"tabpanel\" data-role=\"content\" aria-labelledby=\"tab-label-additional\" aria-hidden=\"true\"\u003e\n\u003cdiv class=\"additional-attributes-wrapper table-wrapper\"\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data table additional-attributes\"\u003e\n\u003ccaption class=\"table-caption\"\u003eMore Information\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eSpecification\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Specification\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71_FLAT6AIII-Spot_Diagram.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/williamoptics.com\/media\/wysiwyg\/Product\/A-F71GTII\/GT71_FLAT6AIII-Longitudinal_Aberration.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0px; padding: 0px; color: #333333; font-family: Roboto, Arial,;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; font-weight: bold;\"\u003e2.5\" R\u0026amp;P Focuser\u003c\/span\u003e\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• Extra-smooth 360 deg. rotatable 2.5\" R\u0026amp;P focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting!\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• Comes with two locking screws on angled positions for heavy load applications.\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• Large aluminum knob with installed thermometer.\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; font-weight: bold;\"\u003eSimply Beautiful Finish\u003c\/span\u003e\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dewshield, dewshield cap.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; color: #333333; font-family: Roboto, Arial,;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px;\"\u003eSlidebase Handle\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• Top quality anodizing.\u003cbr style=\"margin: 0px; padding: 0px;\"\u003e• Very compact for carrying on flights.\u003c\/span\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44013380108399,"sku":"A-F71GTII-RD-AP","price":1653.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/2023-04-07_114814__13025.jpg?v=1766552414"},{"product_id":"william-optics-gran-turismo-81-mark-iv-red","title":"William Optics Gran Turismo 81 Mark IV - Red","description":"\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003eThe William Optics Gran Turismo Mark IV is Optically Unbeatable\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eTriplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eExtremely sharp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eExcellent color correction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eEach lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eThis F\/5.9 lens is ideal for astrophotography\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003eSimply Beautiful Finish\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003ePure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dewshield, dewshield cap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eTop quality anodizing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eVery compact for carrying on flights\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003eAttention to Details\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003e2\" \u0026amp; 1.25\" adapter included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eAnti-marring brass compression rings\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003eR\u0026amp;P FOCUSER\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003e2.5” R\u0026amp;P Ultra robust focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting! Heavy duty: perfect for your accessories.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-weight: bold; font-family: Arial; color: rgb(51, 51, 51);\"\u003eSIMPLY BEAUTIFUL FINISH\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003ePure William Optics quality fit and finish powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dew shield, dew shield cap. \u003c\/span\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eTop quality anodizing.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eVery compact for carrying on flights.\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003eATTENTION TO DETAILS\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003e2\" \u0026amp; 1.25\" adapter included in the price.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eAnti-marring brass compression rings.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003e90mm mounting rings are optional.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eThough you will never need it, you have a 2-year warranty from WO and the certainty that we will be there to assist you even beyond that, if you need!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial; font-weight: bold;\"\u003ePACKAGE CONTENTS:\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003eMounting Rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eGT81 OTA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eCNC Carry Handle Bar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eDovetail Plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003e2.5” R\u0026amp;P Focuser\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eBahtinov Mask Cover\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: Arial;\"\u003eSoft Carry Case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin: 0px 0px 10px; padding: 0px; box-sizing: border-box; background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(51, 51, 51);\"\u003eTwo-year, no fuss warranty and constant customer service!\u003c\/span\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Flattener  Flat6AIII","offer_id":44013380272239,"sku":"A-F81GTIV-RD","price":2229.98,"currency_code":"CAD","in_stock":true},{"title":"Nikon 48mm T-Ring","offer_id":44013380305007,"sku":"A-F81GTIV-RD","price":2033.99,"currency_code":"CAD","in_stock":true},{"title":"Canon 48mm T-Ring","offer_id":44013380337775,"sku":"A-F81GTIV-RD","price":2033.99,"currency_code":"CAD","in_stock":true},{"title":"Sony 48mm T-Ring","offer_id":44013380370543,"sku":"A-F81GTIV-RD","price":2034.99,"currency_code":"CAD","in_stock":true},{"title":"Fuji T-Ring","offer_id":44013380403311,"sku":"A-F81GTIV-RD","price":2038.99,"currency_code":"CAD","in_stock":true},{"title":"Pentax T-Ring","offer_id":44013380436079,"sku":"A-F81GTIV-RD","price":2034.99,"currency_code":"CAD","in_stock":true},{"title":"Camera Angle Rotator","offer_id":44013380468847,"sku":"A-F81GTIV-RD","price":2169.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/gt81_1__30949.jpg?v=1766552417"},{"product_id":"william-optics-gran-turismo-81-wifd","title":"William Optics Gran Turismo 81 WIFD","description":"\u003cspan style=\"font-family: Arial;\"\u003eIntroducing the WILLIAM OPTICS Internal Focus Design (WIFD) Apochromatic Series. This innovative and revolutionary design combines a precision (Patented) internal focusing mechanism with the highest quality optics available, providing the ultimate Apochromatic refractor for astrophotography. Designed from the ground up with the ability to handle the newest generation of large, heavy, high-resolution cooled cameras, the rock-solid optical tube assembly is uncompromised in quality. The movement of the focuser is integrated inside the main tube assembly, so there are no movements of a focuser drawtube visible from the outside.  The user can enjoy the benefits of a traditional two speed fine focuser, while not worrying about limitations typically found in traditional rear mounted focusers. \u003c\/span\u003e\u003cdiv\u003e\n\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003eNEW internal focuser.  Our new design includes the Patented WO center focuser with precise internal sliding of fixed optics to prevent image shift.  The integrated position viewing window on the focuser provides instant verification of the graduated numerical display.  The smooth rack and pinion design is incorporated into the focuser to provide super fine adjustability for critical focus.  The internal movement of the optical elements is protected from the elements and can’t come out of alignment.  The redistribution of weight allows for better balance during imaging sessions.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cdiv\u003eScalable Design.  The WIFD series will allow for many sizes and is not limited to smaller refractors.   Additional optical designs are possible to meet various photographic requirements enhancing the line to include a number of apertures and fast focal ratios.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eInspired by the tremendous success of the WO CAT series of astrographs, William Optics has advanced the capabilities of astrophotography to the next level with this “no weight limit on photo accessories” design.  The solid tube where accessories are attached, has a rigid design, and will not flex or exhibit any change in the optical path regardless of the weight of the camera and filter wheel attached to it.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eImproved “CAT” design ring tubes and dovetail base are lighter while remaining equally rigid. The new design allows for better balance with heavy accessories, and has integral placement of the focuser knobs, providing easy access to focusing during imaging.  Included is the popular WO Saddle Bar Handle, critical for rigid guidescope mounting and autoguiding performance.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eSuper Smooth Field Rotator.  Our field rotator design features smooth camera rotation with markings for degrees and a locking thumbscrew to prevent accidental camera movement,also new Electric Rotator will be available in near future.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44013884080239,"sku":"T-GT-81 WIFD","price":3033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/gt81-wifd-side45_1__88165.png?v=1766565475"},{"product_id":"william-optics-zenithstar-61-ii-apo-refractor","title":"William Optics Zenithstar 61 II APO Refractor","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Zenithstar 61 II APO\u003c\/strong\u003e is a compact 61mm f\/5.9 refractor designed for visual astronomy, travel, wildlife viewing, and wide-field astrophotography. With FPL-53 ED glass, a 360mm focal length, and a 2-inch rack-and-pinion focuser, it is a versatile small telescope for customers who want premium optics in a portable package.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe Zenithstar 61 II is best for beginners, travelling observers, visual astronomers, and astrophotographers who want one compact APO refractor that can serve multiple roles. It is especially useful for wide-field imaging, grab-and-go observing, and lightweight mount setups.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e61mm FPL-53 APO optics:\u003c\/strong\u003e Sharp, high-contrast views with strong colour correction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e360mm focal length:\u003c\/strong\u003e Excellent for wide-field observing and imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/5.9 focal ratio:\u003c\/strong\u003e Flexible for both visual use and camera-based imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch focuser:\u003c\/strong\u003e Supports common visual and imaging accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable design:\u003c\/strong\u003e Easy to transport for travel and quick observing sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBeginner visual astronomy\u003c\/li\u003e\n\u003cli\u003eWide-field astrophotography\u003c\/li\u003e\n\u003cli\u003eWildlife and terrestrial viewing\u003c\/li\u003e\n\u003cli\u003eTravel telescope setups\u003c\/li\u003e\n\u003cli\u003eGrab-and-go observing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eThe Zenithstar 61 II supports 2-inch accessories and can be paired with William Optics Flat61A or Flat61R optics for astrophotography. Customers using cameras should confirm adapter spacing, flattener\/reducer choice, mount capacity, and focusing accessories before purchase.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cp\u003eFor best astrophotography results across larger sensors, use a suitable field flattener or reducer. Customers looking for high-magnification planetary imaging or small galaxy imaging may prefer a larger aperture or longer focal length telescope.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Zenithstar 61 II good for beginners?\u003c\/h3\u003e\u003cp\u003eYes. It is compact, portable, and useful for both visual astronomy and learning wide-field astrophotography.\u003c\/p\u003e\u003ch3\u003eCan it be used visually?\u003c\/h3\u003e\u003cp\u003eYes. It can be used for visual observing with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\u003cp\u003eYes. It is well suited to wide-field astrophotography when paired with the correct flattener or reducer and a tracking mount.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eThe William Optics Zenithstar 61 II APO is a strong choice for customers who want a premium compact refractor for travel, visual observing, and wide-field imaging. Choose it for portability and versatility.\u003c\/p\u003e\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\u003cp\u003eThe following optical report graphics are included for customers who want to review compatible imaging performance.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-zenithstar-61ii-flat61a-diagram-01.jpg?v=1779651419\" alt=\"William Optics Zenithstar 61 II Flat61A optical diagram report\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-zenithstar-61ii-flat61r-diagram-01.jpg?v=1779651432\" alt=\"William Optics Zenithstar 61 II Flat61R optical diagram report\"\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53154227880047,"sku":"A-Z61II-RD","price":962.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":53154227912815,"sku":"A-Z61IIGD","price":962.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":53154227945583,"sku":"A-Z61IITG","price":962.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-zenithstar-61ii-perspective-1.jpg?v=1779651376"},{"product_id":"william-optics-zenithstar-81-wifd-apo-refractor","title":"William Optics Zenithstar 81 WIFD APO Refractor","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Zenithstar 81 WIFD\u003c\/strong\u003e is a premium 81mm APO refractor designed for visual observing, portable astronomy, and wide-field astrophotography. With William Optics Internal Focus Design, a compact optical tube, and support for compatible imaging accessories, it gives customers a versatile refractor that can be used visually or as part of a serious imaging setup.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe Zenithstar 81 WIFD is best for observers and astrophotographers who want more aperture than a small travel scope while still keeping the system portable. It is a strong fit for beginner-to-intermediate imagers, visual observers, and customers building a compact wide-field refractor system.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e81mm APO optics:\u003c\/strong\u003e A strong balance of portability, aperture, and sharp refractor performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIFD internal focuser:\u003c\/strong\u003e Helps maintain alignment and stability with heavier cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual and imaging capable:\u003c\/strong\u003e Works for eyepiece observing and astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable design:\u003c\/strong\u003e Easier to mount and transport than larger refractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging upgrade path:\u003c\/strong\u003e Compatible with appropriate William Optics flatteners\/reducers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVisual astronomy\u003c\/li\u003e\n\u003cli\u003eWide-field astrophotography\u003c\/li\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003ePortable refractor setups\u003c\/li\u003e\n\u003cli\u003eBeginner-to-intermediate imaging systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eFor astrophotography, pair the Zenithstar 81 WIFD with the appropriate William Optics flattener or reducer and confirm camera spacing, adapters, and mount capacity. For visual use, pair it with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cp\u003eFor best edge-to-edge imaging performance with larger sensors, a field flattener or reducer is recommended. Customers seeking high-magnification planetary imaging or small-galaxy work may prefer a longer focal length telescope.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Zenithstar 81 WIFD good for beginners?\u003c\/h3\u003e\u003cp\u003eYes. It is a good beginner-to-intermediate refractor for customers who want one telescope for both visual observing and astrophotography.\u003c\/p\u003e\u003ch3\u003eCan it be used visually?\u003c\/h3\u003e\u003cp\u003eYes. It can be used for visual observing with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\u003cp\u003eYes. It is well suited to wide-field imaging when paired with the correct flattener or reducer and a suitable tracking mount.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eThe William Optics Zenithstar 81 WIFD is a strong choice for customers who want a premium compact refractor with more capability than a 61mm travel scope. Choose it for a versatile visual and imaging platform that remains portable.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53154229289071,"sku":"T-ZS-81RD-WIFD","price":1515.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":53154229321839,"sku":"T-ZS-81GD-WIFD","price":1515.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-zenithstar-81-wifd-perspective-1.jpg?v=1779652899"},{"product_id":"william-optics-fluorostar-91-apo-refractor","title":"William Optics Fluorostar 91 APO Refractor","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Fluorostar 91 APO\u003c\/strong\u003e is a premium 91mm f\/5.9 triplet apochromatic refractor designed for visual astronomy, portable observing, and high-quality deep-sky astrophotography. With a 540mm focal length, compact optical tube, and premium triplet design, it is a strong choice for customers who want serious refractor performance in a manageable size.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 91 is best for intermediate and advanced observers or astrophotographers who want a higher-performance triplet refractor than a compact entry-level APO. It is suitable for visual observing, lunar and planetary viewing, wide-field deep-sky imaging, and premium portable telescope setups.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e91mm triplet APO optics:\u003c\/strong\u003e Delivers strong colour correction and sharp image quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/5.9 focal ratio:\u003c\/strong\u003e A versatile balance for visual observing and astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e540mm focal length:\u003c\/strong\u003e Useful for nebulae, star fields, larger galaxies, and lunar observing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable premium refractor:\u003c\/strong\u003e More capable than smaller travel scopes while still manageable on many mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging upgrade path:\u003c\/strong\u003e Pairs with compatible William Optics flatteners\/reducers for camera use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVisual astronomy\u003c\/li\u003e\n\u003cli\u003eWide-field and mid-field astrophotography\u003c\/li\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003ePremium portable refractor setups\u003c\/li\u003e\n\u003cli\u003eDeep-sky imaging with compatible flattener\/reducer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eFor astrophotography, customers should pair the Fluorostar 91 with the appropriate William Optics flattener or reducer and confirm camera spacing, adapters, filter wheel clearance, focuser support, and mount capacity. For visual observing, use compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 91 is more capable than compact travel refractors but still has a shorter focal length than dedicated planetary or small-galaxy telescopes. For best full-frame astrophotography performance, a matched field flattener or reducer is recommended.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Fluorostar 91 good for beginners?\u003c\/h3\u003e\u003cp\u003eIt can be used by a beginner, but it is best for customers who want a premium refractor and are prepared to invest in a suitable mount and accessories.\u003c\/p\u003e\u003ch3\u003eCan it be used visually?\u003c\/h3\u003e\u003cp\u003eYes. The Fluorostar 91 can be used for visual observing with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\u003cp\u003eYes. It is well suited to astrophotography when paired with the appropriate flattener or reducer and a suitable tracking mount.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eThe William Optics Fluorostar 91 APO is a strong choice for customers who want a premium portable triplet refractor for both observing and imaging. Choose it if you want better optical performance and more reach than a smaller travel scope while keeping the system manageable.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53154229452911,"sku":"T-FLT-91RD-RP33","price":3033.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":53154229485679,"sku":"T-FLT-91GC-RP33","price":3033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-fluorostar-91-perspective-1.jpg?v=1779652911"},{"product_id":"william-optics-fluorostar-120-apo-refractor","title":"William Optics Fluorostar 120 APO Refractor","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Fluorostar 120 APO\u003c\/strong\u003e is a premium 120mm f\/6.5 triplet apochromatic refractor designed for serious visual observing and high-quality astrophotography. With a 780mm focal length and large 120mm aperture, it provides a strong balance of resolution, light gathering, and image quality for lunar, planetary, deep-sky, and imaging use.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 120 is best for intermediate to advanced observers and astrophotographers who want a larger premium refractor for backyard observing and imaging. It is especially well suited to customers with a capable mount who want more aperture than compact travel refractors.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e120mm triplet APO optics:\u003c\/strong\u003e Excellent colour correction, contrast, and resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e780mm focal length:\u003c\/strong\u003e Useful for lunar, planetary, galaxy, and nebula work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/6.5 focal ratio:\u003c\/strong\u003e Balanced for visual observing and astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge refractor performance:\u003c\/strong\u003e More aperture and reach than compact APO refractors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVisual astronomy\u003c\/li\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003eDeep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003eGalaxy and nebula imaging\u003c\/li\u003e\n\u003cli\u003ePremium backyard refractor setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eFor imaging, pair the Fluorostar 120 with the appropriate William Optics flattener or reducer and confirm camera spacing, focuser capacity, filter wheel clearance, and mount capacity. For visual use, pair it with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 120 requires a more capable mount than smaller refractors. It is portable for many users, but it is not a lightweight grab-and-go telescope. For full-frame imaging, a matched field flattener or reducer is recommended.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Fluorostar 120 good for beginners?\u003c\/h3\u003e\u003cp\u003eIt is best for intermediate or advanced users, although a committed beginner with the right mount and accessories can grow into it.\u003c\/p\u003e\u003ch3\u003eCan it be used visually?\u003c\/h3\u003e\u003cp\u003eYes. It is well suited to visual observing with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\u003cp\u003eYes. It is a strong imaging refractor when paired with a suitable mount, camera, and correct flattener or reducer.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eThe William Optics Fluorostar 120 APO is a strong choice for customers who want a serious premium refractor for both observing and imaging. Choose it if you want more aperture and reach than a compact APO while staying within a manageable refractor size.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53154229911663,"sku":"A-F120RD-RP33","price":4965.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":53154229944431,"sku":"A-F120TG-RP33","price":4965.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-fluorostar-120-perspective-1_bf232e46-4faa-43e3-9785-7875986b0fcb.jpg?v=1779653639"},{"product_id":"william-optics-fluorostar-132-apo-refractor","title":"William Optics Fluorostar 132 f\/6.9 APO Refractor (3.7\" R\u0026P Focuser)","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Fluorostar 132 APO\u003c\/strong\u003e is a premium large-aperture 132mm f\/6.9 triplet apochromatic refractor designed for serious visual observing and advanced astrophotography. With a 925mm focal length, excellent colour correction, and substantial light-gathering power, it is built for customers who want a high-performance refractor for lunar, planetary, galaxy, nebula, and deep-sky imaging work.\u003c\/p\u003e\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 132 is best for experienced observers and astrophotographers who want a larger premium APO refractor for a capable backyard or semi-permanent imaging system. It is well suited to users who already have a mount that can handle a heavier optical tube and accessories.\u003c\/p\u003e\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e132mm triplet APO optics:\u003c\/strong\u003e Provides strong resolution, contrast, and colour correction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e925mm focal length:\u003c\/strong\u003e Excellent for galaxies, lunar detail, planetary observation, and smaller deep-sky objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/6.9 focal ratio:\u003c\/strong\u003e A versatile refractor focal ratio for visual observing and imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge-aperture refractor performance:\u003c\/strong\u003e More reach and light gathering than compact APO refractors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging upgrade path:\u003c\/strong\u003e Can be paired with compatible flatteners\/reducers for astrophotography.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAdvanced visual astronomy\u003c\/li\u003e\n\u003cli\u003eDeep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003eGalaxy and nebula imaging\u003c\/li\u003e\n\u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n\u003cli\u003ePermanent or semi-permanent backyard imaging setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\u003cp\u003eFor astrophotography, pair the Fluorostar 132 with the appropriate William Optics flattener or reducer and confirm camera spacing, focuser capacity, filter wheel clearance, guiding setup, and mount capacity. For visual observing, use compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\u003cp\u003eThe Fluorostar 132 is not a lightweight grab-and-go telescope. It requires a suitable mount and is best suited to customers who are comfortable managing a larger refractor system. For best imaging results, a matched field flattener or reducer is recommended.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Fluorostar 132 good for beginners?\u003c\/h3\u003e\u003cp\u003eIt is best for experienced users or committed beginners with a suitable mount and a clear plan for visual observing or astrophotography.\u003c\/p\u003e\u003ch3\u003eCan it be used visually?\u003c\/h3\u003e\u003cp\u003eYes. It is excellent for visual astronomy with compatible diagonals and eyepieces.\u003c\/p\u003e\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\u003cp\u003eYes. It is a strong imaging refractor when paired with a capable mount, guiding system, camera, and appropriate flattener or reducer.\u003c\/p\u003e\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\u003cp\u003eThe William Optics Fluorostar 132 APO is a strong choice for customers who want a large premium refractor with serious visual and imaging capability. Choose it if you want more reach, aperture, and resolution than smaller APO refractors and have the mount capacity to support it.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53154231451759,"sku":"A-F132III-RP33R","price":6897.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":53154231484527,"sku":"A-F132TGIV-RP37","price":6897.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-fluorostar-132-perspective-1.jpg?v=1779652936"},{"product_id":"william-optics-fluorostar-156-apo-refractor","title":"William Optics Fluorostar 156 APO Refractor","description":"\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Fluorostar 156 APO\u003c\/strong\u003e is a premium large-aperture 156mm f\/7.8 triplet apochromatic refractor designed for serious visual astronomy and advanced astrophotography. With a 1217mm focal length, FPL-53 glass, Lanthanum element, 3.7-inch rack-and-pinion focuser, Losmandy dovetail, and a full-frame-capable image circle greater than 44mm, it is built for observers and imagers who want a high-performance refractor for demanding lunar, planetary, deep-sky, and imaging work.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe Fluorostar 156 is best for advanced visual observers, experienced astrophotographers, and serious backyard or semi-permanent observatory users who want a large premium refractor with excellent colour correction, strong mechanical support, and enough aperture for detailed observing and imaging.\u003c\/p\u003e\n\u003cp\u003eThis telescope is especially well suited to customers who already own a capable equatorial mount and want a large refractor for galaxies, nebulae, lunar observing, planetary observing, and high-resolution deep-sky imaging.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e156mm triplet APO optics:\u003c\/strong\u003e Large-aperture refractor performance with excellent colour correction and contrast.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFPL-53 and Lanthanum glass:\u003c\/strong\u003e Designed to reduce chromatic aberration and deliver crisp visual and imaging performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1217mm focal length:\u003c\/strong\u003e Provides useful reach for galaxies, smaller nebulae, lunar detail, and planetary observing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ef\/7.8 focal ratio:\u003c\/strong\u003e A strong optical balance for visual observing and serious imaging with optional flatteners or reducers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.7-inch rack-and-pinion focuser:\u003c\/strong\u003e Supports precise focusing and heavier imaging trains, with EAF compatibility noted by William Optics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLosmandy dovetail and three CNC tube rings:\u003c\/strong\u003e Provides solid mounting support for a large refractor system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Bahtinov mask in the dust cover:\u003c\/strong\u003e Helps achieve accurate focus for imaging and high-power observing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAdvanced visual astronomy\u003c\/li\u003e\n  \u003cli\u003eLunar and planetary observing\u003c\/li\u003e\n  \u003cli\u003eDeep-sky astrophotography\u003c\/li\u003e\n  \u003cli\u003eGalaxy and nebula imaging\u003c\/li\u003e\n  \u003cli\u003eFull-frame, APS-C, and Micro Four Thirds camera setups\u003c\/li\u003e\n  \u003cli\u003ePermanent or semi-permanent backyard observatory setups\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution refractor imaging with a capable mount\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cp\u003eThe Fluorostar 156 includes an M92 rotator and M92 to 2-inch RotoLock adapter. William Optics lists compatibility with full-frame, APS-C, and Micro Four Thirds camera formats. For astrophotography, users should pair the telescope with the appropriate compatible flattener or reducer, such as FLAT68III 1.0x, FLAT7A 0.8x, Ultra Flat 0.79x, or FLAT8 0.72x, depending on the desired imaging setup.\u003c\/p\u003e\n\u003cp\u003eThe telescope uses a Losmandy-style dovetail and has an OTA weight of approximately 17 kg \/ 37.48 lb. Customers should confirm mount payload capacity, counterweight requirements, focuser support, camera spacing, guiding setup, and total imaging-train weight before purchase. The EQ mount shown in vendor images is not included.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Fluorostar 156 is not a lightweight grab-and-go telescope. Its size, 1120mm to 1330mm tube length, and 17 kg OTA weight mean it should be used with a capable equatorial mount and a stable setup. It is best suited to experienced users rather than casual beginners.\u003c\/p\u003e\n\u003cp\u003eFor best astrophotography results, a compatible flattener or reducer should be selected based on the camera format and desired focal ratio. The telescope itself is premium and versatile, but the complete imaging system requires careful planning around mount capacity, spacing, guiding, power, and accessories.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the William Optics Fluorostar 156 good for beginners?\u003c\/h3\u003e\n\u003cp\u003eIt is best for experienced observers and astrophotographers. A committed beginner could grow into it, but the large size, mount requirements, and accessory planning make it better suited to advanced users.\u003c\/p\u003e\n\u003ch3\u003eCan the Fluorostar 156 be used for visual observing?\u003c\/h3\u003e\n\u003cp\u003eYes. It is a premium APO refractor and can deliver excellent lunar, planetary, double-star, and deep-sky visual views when paired with appropriate diagonals and eyepieces.\u003c\/p\u003e\n\u003ch3\u003eCan it be used for astrophotography?\u003c\/h3\u003e\n\u003cp\u003eYes. The Fluorostar 156 is designed for serious astrophotography and supports full-frame, APS-C, and Micro Four Thirds camera formats when paired with the correct imaging accessories.\u003c\/p\u003e\n\u003ch3\u003eDoes it require a flattener or reducer?\u003c\/h3\u003e\n\u003cp\u003eFor best imaging performance, especially with larger camera sensors, a compatible William Optics flattener or reducer is recommended. William Optics lists FLAT68III 1.0x, FLAT7A 0.8x, Ultra Flat 0.79x, and FLAT8 0.72x as compatible options.\u003c\/p\u003e\n\u003ch3\u003eWhat kind of mount is needed?\u003c\/h3\u003e\n\u003cp\u003eA capable equatorial mount with sufficient payload capacity is required. The OTA alone is approximately 17 kg \/ 37.48 lb before adding cameras, guide scopes, focusers, rings, plates, and other accessories.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eAt Ontario Telescope and Accessories, we recommend the William Optics Fluorostar 156 for advanced observers and imagers who want a large premium APO refractor with serious visual and astrophotography capability. Choose it if you want high contrast, excellent colour correction, large-aperture refractor performance, and have the mount capacity to support it properly. Choose a smaller Fluorostar or Zenithstar model if portability, budget, or beginner-friendly setup is the priority.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":53159763640431,"sku":"A-F156RD-RP37","price":12417.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":53159763673199,"sku":"A-F156GD-RP37","price":12417.0,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":53159763705967,"sku":"A-F156TG-RP37","price":12417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/william-optics-fluorostar-156-red-perspective-1.jpg?v=1779820817"}],"url":"https:\/\/ontariotelescope.com\/collections\/refractors-william-optics.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}