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Old 20-02-2017, 10:39 AM
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AG Hybrid (Adrian)
A Friendly Nyctophiliac

AG Hybrid is offline
 
Join Date: Nov 2009
Location: Toongabbie, NSW
Posts: 1,440
My Semi Apo filter took a lot of light away from my ES 102 achro. Also turned stars that already had no violet fringe into vomit color. I just bought a 6" Mak instead for the high power views and use the 4" for low power rich field stuff that is not really affected by CA.
A rather expensive filter that just sits in my eyepiece case at the moment. I don't foresee myself picking up a big achro anymore now that I have a Mak.
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