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Old 28-01-2019, 04:49 AM
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Ukastronomer (Jeremy)
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Ukastronomer is offline
Join Date: Jan 2019
Location: Llandysul, WALES, UK
Posts: 1,251
Originally Posted by Joshua Bunn View Post
Jeremy is on the right track. This is not from your filters, but from the light reflecting or difracting of something in your imaging train. Most likely something shiny, even something black anodised. Try removing your camera and looking from where the camera would be, for shiny surfaces while pointing the scope into a dimly lit light source.

YEY, actually as a photographer (professional, sports) NOT astronomy, I see similar in close up tubes, cheap ones, where you often get total internal reflections, happens in macro photography with let's say "less expensive" gear
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