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Old 23-12-2018, 07:15 PM
SuperG
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SuperG is offline
 
Join Date: Oct 2014
Location: Sydney, NSW
Posts: 120
This is an unmodified Skywatcher ED80 that I've had from new with the standard (albeit poor performing) single speed focuser. I am using a Canon 60D.

The TV FF/FR is quite heavy so I wonder if the single speed focuser that came with my ED80 is sagging a bit to cause the vignetting. Alternatively, I don't know anything about spacing. Do I need a spacer between the FF/FR and the Canon.

Check out the image and that is with some compensation in Photoshop to remove some vignetting.
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