Quote:
Originally Posted by PeterSEllis
Hi Russ,
I would be interested in hearing what sort of light filter you use, most of the sodium vapors are disappearing around here, to be replaced by new broad spectrum fluorescent lights, so I had not considered using a filter for that reason. If you having a success with them, I will certainly investigate the idea further, anything to make the skies blacker has to be a winner.
Cheers
Peter
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Hi Peter,
I use the astronomik ccd cls it seemed to be one of the best one from my research although there are a few brand options out there.
While a LP filter is more effective on sodium lit areas vs broad spectrum there still should be an improvement to signal vs 'unwanted signal' as you are blocking a lot of rubbish hitting the sensor.
Cheers
Russ