Description

Astromania Adjustable Guiding Scope Ring Set with Plate - 90 mm inside diameter (pair) - for telescope tube diameter or finders 63 to 89mm

The guide scope rings from Astromania Optics allow a reliable and above all stable adaption of telescopes parallel to the main instrument. With the knurled thumb screws, the guide scope is adjustable and you can centre a sufficiently bright star in the eyepiece or the the autoguider. And the tube rings are suitable for bigger finder scopes, too. The adaption of the tube rings to the telescope.

The Guiding Scope Ring Set has a Vixen style dovetail bar that can be mounted to your telescope in different ways. First, it fits the standard dovetail finder scope base included on many telescopes. Simply slide it into the dovetail base, then tighten the thumbscrew on the base to secure the guide scope in place.

The mounting bar has three threaded through-holes: the center hole has ¼"-20 threads and the two larger holes on either side of center have M8 x 1.25 threads. To attach the guide scope bracket to a universal dovetail plate, one way would be to insert a ¼"-20 socket head capscrew of proper length up through the dovetail plate and into the center hole of the bracket's dovetail bar. Tighten the bolt firmly with an Allen wrench. Then install the universal plate onto your telescope's tube rings or radius blocks. Alternatively you could attach the bracket using two M8x1.25 screws in the same manner.

Astromania Adjustable Guiding Scope Ring Set with Plate - 90 mm Inside Diameter (Pair) - for Telescope Tube Diameter or Finders 63 to 89mm

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Product review & video

so I will be making a bracket for this old achromatic refractor telescope that I bought in 2014 I'm gonna be using it as a guide scope on top of my main 10 inch but before I can do that I'll need to make a bracket for it so I'm gonna use like aluminum just aluminum well just an aluminum strip for me the adjustment screws for this scope will be m5 x 40 length hexagonal screws so I'm gonna start by measuring the outside diameter of the tube assembly anyway it's 63 millimeters so and if we take the formula for the the outside diameter or I don't know what it's called in English but in Dutch it's T home Tech will take PI we'll use PI and do two times the radius times pi and that will give us our length for the aluminum strip to be cut off and yeah so I did the formula and it was about 282 millimeters but I'm gonna have a bit of overlapping going on because I can't weld aluminum so for me it