Astromania Upgrated Guide Scope 70mm FMC with Double Helical Focuser Deluxe Finder Guidescope Kit Compatible with 125 inch Eyepiece for Astronomy Telescope Auto Guiding Camera for Astrophotography

400mm focal length with bright widefield optics puts numerous potential guide stars in view so youll never have to search for one miniguide tube to quickly find objects and guiding stars designed both for visual as well as for photographic use Have a builtin wormfocuser with brass compression ring and 2 thumbscrews 90mm focusing range 10mm focusing range with microfocusing helical focuser the rest is by a fixable scaled drawtube is made possible by an extremely precise focus adjustment Take 125 inch eyepiece worm focuser for fast focusing prevent rotation of camera or eyepiece use as viewfinder to waste less time finding objects in visual observation come with matching pipe clamps and synta style mounting plate to install easily Sturdy black anodized aluminum housing milled and knurled ring allow precise focus adjustments lock thumbscrew to hold extension tube in place other two holes are equipped with built in hex screws which tighten two hex screws with hex wrench to lock Adjustableaim dovany weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses dovetail guide scope bracket installs on virtually any astrophotography telescope quickly and easily