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Old 11-05-2014, 09:38 PM
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Quote:
Originally Posted by stephenb View Post
Now that the burnt image of the Moon on my retina has almost healed from last night I'm looking at a Lumicon 2" ND / Moon filter to use next month .

For aperture in the high teens (i.e. 18" for me) should I go a 13% or 25%? Anyone with this glass size use either %?
I use 13% on an ED80 and find it "about right" from a dark site and perhaps slightly dim at home in the suburbs.

I also use 13% on a 10" SCT and find it way too bright from any location, and so do non-dark adapted passers by.

For an 18" aperture, I suggest the 13% and the 25%!
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