{"product_id":"guiding-scope-rings-with-finder-dovetail-mounting-plate-adjustable","title":"Guiding Scope Rings with Finder Dovetail Mounting Plate - Adjustable","description":"\u003cp\u003eIn this review the Guiding Scope Rings with Finder Dovetail Mounting Plate are evaluated for amateur and semi-pro astronomers who need a reliable way to mount a guide scope parallel to their main telescope. The bottom line: these rings deliver solid build quality and useful alignment features, making them a practical choice when you want a stable, adjustable mount for guide scopes between 38 and 72mm. The review focuses on real installation details, mounting flexibility and whether the included Synta-style dovetail bar is convenient for common telescope setups.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable diameter:\u003c\/strong\u003e The rings clamp guide scopes from 38 to 72mm, providing a broad fit range for common small guidescope tubes without adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure thumbscrews:\u003c\/strong\u003e Knurled thumbscrews with nylon tips make it easy to tighten the guide scope firmly while avoiding marring the tube finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple threaded holes:\u003c\/strong\u003e Each ring offers three M6 threaded holes on the bottom plane so you can attach the rings to custom bars or dovetail plates with stable mounting points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSynta-style dovetail bar:\u003c\/strong\u003e The dovetail bar fits into widely used Synta-style finder bases, allowing direct mounting to many telescopes without extra hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultifunction holes:\u003c\/strong\u003e The dovetail bar includes two M6 countersunk holes, a central 1\/4'-20 hole, two M6 holes at 20mm spacing and two M8 holes at 35mm spacing for flexible accessory attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocating grooves:\u003c\/strong\u003e Two built-in locating grooves on the bar help maintain precise alignment of the rings for repeatable positioning and accurate guiding setup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis product is best for astrophotographers and serious visual observers who use a separate guide scope and need a compact, sturdy mounting solution that fits a range of small guide tubes. The combination of adjustable rings and a Synta-style dovetail bar makes it a practical option for those using mounts or telescopes with finder bases compatible with Synta standards.\u003c\/p\u003e\u003cp\u003eLess suitable users include those whose guide scopes fall outside the 38 to 72mm diameter range or people who require a quick-release, single-hand detachment system; this kit uses thumbscrews and threaded connections intended for secure, semi-permanent mounting rather than ultra-rapid swaps.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSolid build quality noted by customers, giving confidence in long-term use on field setups.\u003c\/li\u003e\n\u003cli\u003eGood alignment aids, including locating grooves and offset hole options that help keep the guide scope precisely positioned.\u003c\/li\u003e\n\u003cli\u003eVersatile mounting options on the dovetail bar with multiple thread sizes and spacings for accessories or custom adapters.\u003c\/li\u003e\n\u003cli\u003eThumbscrews with nylon tips protect the guide tube finish while providing secure clamping.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot ideal for guide scopes smaller than 38mm or larger than 72mm without additional adapters.\u003c\/li\u003e\n\u003cli\u003eThe system uses multiple threaded connections, which is secure but not as fast as proprietary quick-release mounts for frequent swaps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable diameter\u003c\/td\u003e\n\u003ctd\u003e38 to 72mm (1.49' to 2.83')\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing thumbscrews\u003c\/td\u003e\n\u003ctd\u003eKnurled with nylon tips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing threaded holes\u003c\/td\u003e\n\u003ctd\u003eThree M6 holes (one central, two at 20mm spacing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail style\u003c\/td\u003e\n\u003ctd\u003eSynta-style dovetail bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBar mounting holes\u003c\/td\u003e\n\u003ctd\u003eTwo M6 countersunk (70mm spacing), one 1\/4'-20 center, two M6 (20mm spacing), two M8 (35mm spacing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocating feature\u003c\/td\u003e\n\u003ctd\u003eTwo built-in locating grooves on dovetail bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Guiding Scope Rings with Finder Dovetail Mounting Plate are a practical, well-made option for anyone mounting a small guide scope alongside a main telescope. They offer strong alignment features and flexible threaded mounting points that justify the purchase for users who prioritize secure, repeatable positioning over ultra-fast release. For most amateur astrophotographers using guide tubes in the specified diameter range, this kit represents solid value and dependable performance.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these rings fit my guide scope?\u003c\/strong\u003e\u003cbr\u003eThey fit guide scopes with diameters between 38 and 72mm; measure your guide tube outer diameter to confirm compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the dovetail bar attach to common finder mounts?\u003c\/strong\u003e\u003cbr\u003eYes, the bar is Synta-style and designed to fit many telescope finder bases that accept that dovetail form.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the thumbscrews safe for painted or anodized tubes?\u003c\/strong\u003e\u003cbr\u003eYes, the knurled thumbscrews include nylon tips to reduce the risk of scratching or marring a tube finish.\u003c\/p\u003e","brand":"Yueoct","offers":[{"title":"Default Title","offer_id":48615682343131,"sku":"B0CFF9NCLJ","price":38.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61yGx1eNddL._AC_SL1500.jpg?v=1778357844","url":"https:\/\/gearmusthave.com\/products\/guiding-scope-rings-with-finder-dovetail-mounting-plate-adjustable","provider":"GearMustHave","version":"1.0","type":"link"}