Like New SVBONY SV106 Guide Scope 50mm with Helical Focuser

Condition: This is a used SVBONY 50mm guide scope in perfect, pristine condition. The outer body is free of any marks and the optics are whistle clean. We don't believe this was ever used.  Comes with both end caps in its original box.        Description: 50mm Guide scope will help guide you to capturing higher quality astrophotos. with its 50mm lens and smooth helical focuser, the versatile 50mm multi-use guide scope with helical focuser is an ideal addition to any astrophotographers collection of gear Multi-use guide scope with helical focuser features a built-in helical focuser that allows precise focus adjustments with zero flexure for rigid performance. obtaining a clear, sharply focused view of potential guide stars is quick and easy with this sturdy scope High power guide scope features a machined, knurled ring to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once adjustments are complete. the focuser boasts 8 mm of precise helical focus travel, plus telescoping drawtube housing provides up to 30 mm of additional back-travel if needed for your particular autoguider device This complete guide scope comes with two heavy-duty guide scope rings and a 3.5" long, 1.18"wide dovetail mounting bar, which is compatible with dovetail finder scope bases for easy attachment. the dovetail bar features five threaded through-sockets for versatile attachment options. the included guide scope rings feature six metal thumbscrews for precise aiming The quick guide scope with helical focuser also features male t-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female t-threads     Model F9177A Aperture 50mm / 1.97in Focal Length 190mm / 7.48in Focal Ratio F3.8 Coating Fully multi-coated Type of Telescope-Achromatic Refractor Best for imaging Deep sky Focuser-Helical Focuser with 8 mm Travel Connection to eyepiece 1.25 inch Tube diameter-54.5mm Total Length-240mm Included accessories-Tube Rings and Dovetail Rail