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Re: [APML] Light pollution filter for R200SS

Hi Serge, my personal experience with a Hutech IDAS filter is that it is
an excellent filter, especially in the Mercury lights region. Not so good blocking
the high pressure sodium lights.
Juan Conejero has also had a good experience with the Hutech.
 
Here is a link for comparing various filters
 
http://www.astrodon.com/LPSFilters.html
 
Best Regards
 
Jose I. Alarcon
 
 
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