{"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-NEW","price":697.2,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":53154227912815,"sku":"A-Z61IIGD-NEW","price":697.2,"currency_code":"CAD","in_stock":true},{"title":"Space Grey","offer_id":53154227945583,"sku":"A-Z61IITG-NEW","price":697.2,"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","url":"https:\/\/ontariotelescope.com\/products\/william-optics-zenithstar-61-ii-apo-refractor","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}