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Old 07-03-2011, 02:38 AM
AstroGuy
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AstroGuy is offline
 
Join Date: Mar 2011
Posts: 179
Upgrades to street lights, making LPR filters obsolete?

Hi all,

Just wondering, with all the street light upgrades around the world to new cost-effective LED types, will this render LPR filters less functional or obsolete?

Since the new lights will most likely be of a different Spectral Wavelength, LPR filter tuned to block Sodium Spectral Wavelengths probably will not work anymore. Anybody got data or reference to this problem and how it will affect Amateur Astronomy?
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