Posted 07 December 2012 - 06:05 PM
Posted 07 December 2012 - 08:18 PM
Posted 07 December 2012 - 11:34 PM
Posted 07 December 2012 - 11:41 PM
mmalik.... if the camera is modded + CLS-CCD filter don't you have to use custom balance to fight the (green/bluish) color?
Yes, that's what I meant; may be didn't say it right. Thx
Posted 08 December 2012 - 03:25 PM
if you are serious about it you need to do color calibration on your images anyway, either G2V or something like PixInsight's ColorCalibration. assuming your stars or galaxy core are not blown out, color calibration can fix your color casts.
having said that, usually simply balancing the histogram channels in PI or PS gets you most of the way to proper color balance. of course if the DSO is Ha-rich or something then this won't yield good results.
Posted 09 December 2012 - 05:49 PM
But I prefer to use the same CWB setting I use for daytime...it just seems to make post processing/color balance later easier..
However, for using the BOC histo to judge what exposure settings you should be shooting for..
If your channels are separated, like you showed me before, Jason, just shoot so that however far apart your channels are try and find the center of the channels(combined channels, not each separate channel's center, know what I mean?) and use that as your "line" for determining 1/3-1/2 on BOC Histo..
Atleast, that is what I do..
Maybe someone with a bit more experience will chime in..
EDIT, pfile has beaten me to it lol
Posted 09 December 2012 - 06:24 PM
Posted 09 December 2012 - 07:26 PM
Since you are looking at the individual channels Histo, this is pretty normal AFAIK...I think if you switched to a Luminance view, it MIGHT show you one single peak/curve...IDK..
But, that looks perfect to me as is. The R channel being the most dominant, obviously being modified..and B being more dominant than G due to the LP in your area, and the 'color' of the sky itself..
This is from my UNmodified D800..not much, but you can clearly see that the channels do not line up perfectly..and is more of a result of the WB used(AWB in this case)..
Once modified the result will be VERY similar to yours.
I would like to see if others chime in and show a histo of a single exp..
Posted 09 December 2012 - 07:29 PM