CWB with Modded Camera

[leon]

Hi guys just one question please, If one has a modded camera, and changes the white balance with the gray card trick, dose one still have the same sensitivity as before the WB was changed,

I ask this because when i took some test shots of an object, everything was pink, that was OK, but now that I set the CWB, everything is blue.

I tried it last night with the CWB, but have to admit the sky was foggy, full moon, and pretty poor seeing, so the 6 minutes subs I took were like taking the blue sky during the day, is this pretty normal, and have i exceeded my sky fog limit as well, under these conditions.

However when i processed them the correct way for once the blue was gone, but the images were pretty light on for detail, which i expect was due to the moon, and fog etc.

Could I have some thoughts on this please.

Leon

[skwinty (Steve)]

Hi Leon
CWB's are only valid for the light conditions under which the CWB was taken.
If you shoot your astropix in raw then CWB is irrelevant as the camera doesnt apply the CWB to the raw data.
If you shoot in JPG then the CWB is applied to the data.
I only use CWB for terrestrial jpg shots with my Hutech modded 40D and leave the camera set to AWB when shooting raw astropix.

[leon]

Thanks Steve, i was informed that if one uses CWB while doing astro stuff one would not have to do much in levels, or post processing as the camera would look after the colours.

I think I will reset it back to what I had before, thank You.

Leon