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  1. I purchased a standard GSO 6" RC telescope late 2016. As with other RC scopes, I've had my share of problems with the collimation. As many of you know collimation of the RC is a bit of a struggle. After reading much of the material online, it seems that the procedure boils down to multiple iterations with the simple Cheshire and something called as Hall of Mirrors aka multiple reflection effect. Below are the test images from tonight. Reference star is Canopus. All images are inside of focus, unless mentioned. The small rectangle shows the location of the star in the FoV. I also built myself an artificial star from Aluminum foil and LED torch and checked the collimation indoors. The indoor test is quite better as seeing conditions have not affected the judgement. As you may all notice, I've used Mire De Collimation exe file for final checking. I've not used a laser collimator or Howie, just a simple Cheshire and a real star, though I'd love to try again with a Howie Glatter.
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