[pmrid (Peter)]

I’ve tried to follow this method from the videa on YouTube. The author uses the tag “astronomyshed” and I expect you will find it easily. I have failed badly at my first attempt. The presenter uses a small generic camera mounted in an eyepiece holder rather than the standard laser collimator which he says is prone to error.

Have any IISers tried this technique and if so, with what results. I’d very much like to see where I am going wrong.