{"product_id":"william-optics-zenithstar-73-ii-apo-gold-imaging-package-with-guide-scope-used","title":"William Optics ZenithStar 73 II APO (Gold) Imaging Package with Guide Scope – Used","description":"\u003cp\u003e\u003cstrong\u003eUsed – Good Condition.\u003c\/strong\u003e A clean, near-excellent William Optics ZenithStar 73 II APO in gold, sold as a complete wide-field imaging package with flattener, light-pollution filter, guide scope and guide camera, and the William Optics carry case.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics ZenithStar 73 II APO refractor (Gold)\u003c\/li\u003e\n\u003cli\u003eWilliam Optics Flat73A field flattener\u003c\/li\u003e\n\u003cli\u003eOptolong L-Pro 2\" light-pollution filter\u003c\/li\u003e\n\u003cli\u003eWilliam Optics guide scope\u003c\/li\u003e\n\u003cli\u003eZWO ASI120MM Mini guide camera\u003c\/li\u003e\n\u003cli\u003eWilliam Optics carry case for the telescope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThere are signs of the anodization fading.  This is cosmetic and does not effect performance.\u003c\/p\u003e\n\u003ch3\u003eAbout the ZenithStar 73 II\u003c\/h3\u003e\n\u003cp\u003eThe ZenithStar 73 is one of the most popular small imaging refractors ever made — compact, light, and sharp. It's a 73 mm f\/5.9 air-spaced APO doublet (430 mm focal length) using Ohara FPL-53 ED glass for excellent colour correction, with William Optics' 2.5\" dual-speed rack-and-pinion focuser and signature fit and finish. At 430 mm it frames large emission nebulae, galaxies like M31, and open clusters beautifully, and it rides easily on mid-size mounts and travel setups. The II version has since been superseded by the ZenithStar 73 III, and the gold finish is a sought-after look.\u003c\/p\u003e\n\u003cp\u003eThis package is ready to image out of the box: the Flat73A flattener gives flat, round stars across the field, the Optolong L-Pro helps cut through suburban light pollution while keeping natural star colour, and the guide scope with ASI120MM Mini gets you guiding for longer exposures. Everything packs into the William Optics case.\u003c\/p\u003e\n\u003ch3\u003eFinal Sale\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis item is sold as a Final Sale.\u003c\/strong\u003e All used equipment sales are final. Please review our \u003ca href=\"https:\/\/ontariotelescope.com\/pages\/terms-policy\"\u003eUsed Equipment Sale Policy\u003c\/a\u003e before purchasing.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":67720659140719,"sku":"Z73II-GD-USED-PKG","price":850.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/IMG_0189.jpg?v=1791647472","url":"https:\/\/ontariotelescope.com\/products\/william-optics-zenithstar-73-ii-apo-gold-imaging-package-with-guide-scope-used","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}