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stevek
Pooh-Bah
Reged: 04/16/06
Posts: 1229
Loc: west michigan
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Re: Best light pollution filters?
07/18/08 01:55 AM
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David? I read a thread here at CN recently where someone mentioned that a broadband filter had become saturated after a certain point and became less effective. My thought was that they had interpreted the situation wrong - that the filter still filtered out the specified wavelengths, just that there was other LP involved that it didnt stop, much like your description of moon glow. Are there filters that saturate? Will you comment please?
Steve
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DSO 8" f6 DOB w/ 8x50 RACI & 2"Crayford
1958 Sears Discoverer 76mm Refractor
GSO SV 30mm 2",21mm Hyp,13mm Strat,BO/TMB ver2-6mm & 4mm
1.25"Filters: DGM-NPB, 25%ND
1.25" plossls: 25mm,20mm,15mm,9mm
Orion 2X Shorty Barlow
Garrett Gemini LW 11x56mm binocs
BTG-10 4.0mW green laser pointer
"What is that burning in the sky? Tell me y'all..." Jeff Beck/Jan Hammer
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