PDA

View Full Version here: : Can anyone recommend me a moon filter?


Scopie
28-02-2013, 08:52 PM
Guys- I figure this question has been asked a hundred times before but...

I have a 16" Dob and on the occasion I want to look at planets or the moon with it I'm using a moon filter from a celestron 2" eyepiece set. I have another filter for 1.25 inch eyepieces, both seem to create an annoying internal reflection and at least for the moon isn't really cutting the light enough!

Perhaps I need to get something like a polarising filter.

Yes, I know that looking at the moon with 16 inches is like the old proverb of diving for golf balls with a sub, but If I'm surfing the sky and I suddenly feel like catching a moon or planet, setting up the 8" scope as well is proving to be more trouble than it's worth. Plus I can only cart one or the other to dark skies anyway.

Suggestions or filter recommendations much appreciated!

AG Hybrid
28-02-2013, 10:29 PM
GSO Moon filters work quite well for me. No real internal reflections. Reasonably priced with reasonable build quality. For a 16" scope you'll want one that reduces as much light as possible. I use a 90% reduction one in my 12".

Jeremy Parker
01-03-2013, 03:04 AM
Lumicon Neutral density ND13 is superb.
And they are top quality,

issdaol
01-03-2013, 02:54 PM
+1

I am using Lumicon as well. Very nice quality

Edit: Mine is the ND50 though

Scopie
06-03-2013, 06:04 PM
I'll check those out.

Much obliged for your advice :)

David Niven
07-03-2013, 12:46 AM
+2 from me for the Lumicon ND filter. They are top rated and I got mine from VTI Optics in Melbourne.

Oleg
30-05-2013, 11:48 PM
Brad,

I believe the best option is a polarizing filter. With my 14" scope a 13% ND filter is too bright for my eyes. I gave a try to the Antares 1.25 variable filter (got it from scopestuff.com), the polarizing feature was very good, I could make it as dim as I needed, but the optic quality was very disappointing. I'm still looking for a good polarizing filter for my scope.