74058Re: [ccd-newastro] Light Pollution filter as luminance?
- Apr 20, 2014Hi Audie,
Do you use it by itself to create a luminance image? Or do you use it in conjunction with the other filters?ThanksMarkSOn Sun Apr 20 2014 at 5:59:48 PM, Audie Hickey <dadoferzsebet@...> wrote:Hi Mark,I live up the road in Union City. I use the LPS from IDAS. Works about the best of any I have tried.AudieOn Sunday, April 20, 2014 5:51 PM, Mark Striebeck <mark.striebeck@...> wrote:
Hi,Now, where galaxy season is upon us, I have to put my narrowband filters aside for a little and try to improve my RGB imaging skills. I am imaging from near downtown San Jose, CA. Light pollution is pretty bad!My main struggle is with luminance - using a luminance filter is useless under these conditions.I tried to do RGB imaging only (all binned 1x1). With that, I get relatively good object data, but it's hard to get out details and to reduce background noise.I am trying right now to create a synthetic luminance image and use that - but so far with mixed results.I also took some Ha subs to be used as a luminace layer (and to boost the red signal) but their SNR is still pretty bad (low background noise, but also low signal).I wonder if it would be possible to use a light pollution filter to take a luminance image?Or any other methods that people use?MarkS
- << Previous post in topic Next post in topic >>