{"product_id":"zwo-30mm-f-4-mini-guide-scope-used-excellent","title":"ZWO 30mm f\/4 Mini Guide Scope – Used","description":"\u003cp\u003e\u003cstrong\u003eUsed – Excellent Condition.\u003c\/strong\u003e A pre-owned ZWO 30mm f\/4 Mini Guide Scope in excellent shape, complete with its guider ring and dovetail and the original box. This model has been discontinued by ZWO, so clean examples are getting harder to find.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eZWO 30mm f\/4 Mini Guide Scope (30F4)\u003c\/li\u003e\n\u003cli\u003eOriginal box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout the ZWO 30mm f\/4 Mini Guide Scope\u003c\/h3\u003e\n\u003cp\u003eThe 30F4 pairs a 30mm objective with a 120mm focal length in a package that weighs just 500g complete with its guider ring and dovetail — light enough that it costs you almost nothing in payload on even a small mount. The front-part focuser gives 20mm of tube travel and a 0–20mm adjustable back focus range, so getting a guide camera to focus is quick and stays put once set. It is compatible with all ZWO ASI cameras and pairs naturally with the ASI120MM Mini and similar small-sensor guiders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZWO has discontinued this guide scope\u003c\/strong\u003e, having replaced it with the 30F5 ED triplet. The 30F4 built a strong reputation as a simple, rugged, no-nonsense guiding solution and remains a popular choice on the used market — this one is priced well below the discontinued unit's original retail.\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"https:\/\/ontariotelescope.com\/products\/zwo-mini-guide-scope\"\u003eZWO Mini Guide Scope listing\u003c\/a\u003e for full specifications.\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":"ZWO Optical","offers":[{"title":"Default Title","offer_id":53926663454831,"sku":"ZWO-30F4-USED","price":110.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/IMG_6836.jpg?v=1785610185","url":"https:\/\/ontariotelescope.com\/products\/zwo-30mm-f-4-mini-guide-scope-used-excellent","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}