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Hi James,
So the glass of your corrector is near the OTA? that's a fair way off from the ccd. I'm guessing the 3" corrector you're using needs this spacing?
I use the baader mpcc which needs 55mm and the corrector itself is only around 25mm wide, so that's 75mm from the ccd.
I'll check a bit more. Not sure which focuser I'll end up with though.
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