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Just a quick one on collimation,
I have tried numerous times to collimate my scope.
When I am finished, my chesire eyepiece does not appear exactly centred inside the shadow of the secondary. Even when I have the bullseye dead on.
Is this the normal offset what youre supposed to see in a large dob? Or is the view through the EP supposed to be perfectly concentric in all the reflections??
I have collimated numerous times from the begininng, and each time I get the same offset which leads me to believe it is supposed to be a little offset.
Any thoughts please?
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