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M20 Trifid Nebula in LRGBHa

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Filters

Started by gibson57guy, 07/22/2002 11:21PM
Posted 07/22/2002 11:21PM Opening Post
Which filter would be better for galaxies or nebulae and by what % ?? or do they all essentially do the same things only at different levels?? I noticed the price varies which is why I am asking. Example if a 0 111 filter is only 10 % better than a light polution filter then it's not worth it to me to spend twice as much on a 0 111 filter.

1. light polution filter
2. nebulae filter
3. uhc filter
4. 0 111 filter


Any help would be appreciated..

Thanks

Mark Visser
Posted 07/23/2002 05:31AM #1
Check this link out for comparisons of some of these. Bottom line is that some work better or differently on different DSO's. So depending on how discriminating or curious you are you may end up with several of these and others. Mostly though they are for nebulae. Not much helps a galaxy except more apperture cool and darker skies.

http://pages.sbcglobal.net/raycash/filters.htm

rcordell
Posted 07/24/2002 12:18PM #2
Hi all --

A related question comes to mind -- 1.25" or 2" size for viewing of nebulae?
Do most nebulae benefit from wide field views or do shorter focal length eyepieces do the job just as well?

Bob Polcyn