That's very interesting Paul. I've never heard of anyone using the colour separation at the limb as a guide for collimation.
If it's working for you, good for you I say.
As for this:
Quote:
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Originally Posted by '[1ponders
So I switched from negative projection using the barlow to positive projection using an eyepiece.
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Positive/negative.... I do not understand that at all.
But I'm definitely going to try and tweak my collimation using the webcam.
If it's good enough for you, Dennis and other experienced folk, well I'm in!