View Full Version here: : light pollution filter
speach
04-10-2018, 05:30 AM
In the imaging chain of a B&W cmos camera would a light pollution filter be a better option than the luminescence filter? :help:
Slawomir
04-10-2018, 06:14 AM
That depends on the source(s) of light pollution, but the best way to know for your location would be taking a few alternate exposures with a Lum filter and a light pollution filter and see which one has the highest SNR. If light pollution is heavy though, then I would drop the idea of using LRGB filters altogether and do narrowband only (that's what I used to do when I lived in Sydney and Brisbane).
LewisM
04-10-2018, 10:47 AM
I used to use LP filters (tried them ALL, including the VERY expensive one from Cyclops). I got FAR better results by using no filter and letting PixInsight deal with it instead. The results are QUITE noticeable. I still do OSC, and also now mono LRGB-Ha.
MY LP issue has been stated a buzzillion times - it is horrendous.
cometcatcher
04-10-2018, 05:47 PM
It will probably help for nebula but nothing else. Especially broadband stuff like galaxies.
astronobob
04-10-2018, 07:42 PM
I am under the impression that the LP Filter would reduce the LP much more than the 'L' filter,,,
Have a read through my recent thread : Does LRGB Imaging cut through Light Pollution
http://www.iceinspace.com.au/forum/showthread.php?t=169584
Hope helps ?
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