SV106 provides you with a compact & lightweight star guiding solution. SV106 60mm multi-use guide scope with Helical Focuser is an ideal addition to any astrophotographer's collection of gear Works with most short-medium focal length imaging systems,it Suitables for lens barrels with diameters ranging from 43-70mm. SVBONY Universal Dovetail Base is compatible with finder scope,can be installed on telescope.It compatibles for Clestron Orion Sky-watcher Vixen and so on.CNC machining ensures smooth surface and precise cutting of rail, it fits your telescope perfect. Made of premium aluminium alloy, solid construction is wearable and durbale for years of use.Bases feature two large thumbscrew locks to secure the finder scope bracket in place, very easy to install and detach your finder scope or reflex sight,even though wearing gloves.Adjustable all-round viewing angle, observe as one pleases. Helical turbine drive supports 360° all-round adjustment: -60° to +60° altitude adjustment, all-round visual adjustment angle to meet your visual observation needs.Fine-tunning control lever to meet your adjustment efficiency in different scenarios. The mount holds the telescope steady. The locks on each axis work well and the slow motions are smooth. The slow motion controls make it easy to zero in on an object and then keep it from drifting out of the eyepiece as the earth turns. Easy to set up and use, well constructed with good knobs and finishes.