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Old 23-10-2012, 09:28 PM
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alocky (Andrew lockwood)
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Join Date: Aug 2010
Location: perth australia
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This is what inspired me to try it, despite the fact that my site is relatively dark.
http://www.astropix.com/HTML/I_ASTROP/FILTERS.HTM
the theory is that these filters do a pretty good job on the skyglow as well a the light pollution. Worked for me!
cheers,
Andrew.

Quote:
Originally Posted by alistairsam View Post
Hi Justin,
I'm not sure how the filters would help as you are already imaging from dark skies and you have very little light pollution.
Most of the LP filters are band pass so would reject light, but you don't have much to reject in terms of LP. so not sure how any filter would help.
I'm interested to know your thoughts though?

I can only imagine better response if you removed the factory IR filter.
As you'd know, there's the noise to contend with as you increase your exposure duration.
Cheers
Alistair
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