Quote:
Originally Posted by rmuhlack
thanks Mike
Thanks Greg. A lack of baffles could be partially responsible (this scope isn't baffled, although the tube interior is fully flocked), however I think the L-enhance filter combined with the fast f2.8 is mostly to blame. For comparison, this scope with the same camera and an Optolong UV-IR filter doesn't give halos, even on Alnitak
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Reflections off the filter then is clearly the cause.
That’s easier to fix than baffles!
Greg