Thread: Oh no not another Eta Carina
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Old 08-07-2015, 10:10 PM
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cometcatcher (Kevin)
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Quote:
Originally Posted by blink138 View Post
what is the point of a semi apo filter on a newtonian pray tell?
It's also a good nebula filter Pat. Blocks UV and IR as well. I find the colour balance of it very good with unmodified cameras.
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