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Old 10-12-2015, 08:45 AM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Carl,
On the assumption these are both full frame images....
The plate scale shows the different chip sizes (500D = 22.3 x 14.9mm, 6D = 35.8 x 23.9mm) and it could be that the larger chip is picking up an internal reflection from inside the telescope.
What happens when you rotate the camera body - does the reflection move with the body??
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