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I have gone through and rechecked the collimation, still spot on with tools on the bench, will star test again tonight with EP and camera. I suspect that even if I get the static camera star test spot on, as soon as the mount slews and changes attitude and force of gravity applied to the focuser in another direction it will go out again. I have another DSLR (uncooled) and I will try that as well because it weighs less than the cooled camera. If it still sags out of collimation with the lighter camera I will need to make a decision about the path forward; I don't want to have to buy a new focuser so I might have to sell the scope to someone looking for a 'project'.
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