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View Full Version : What's with this crazy light?


mabelsound
02-08-2009, 13:01
I took this photo of my son recently...it's not a great picture, but what the hell's up with the fire? I assume the R-D1's auto WB was struggling to figure out what was going on...the room was lit by compact fluorescents and the woodstove. But that color is nuts. No matter how I adjusted in Lightroom, I couldn't make it yellow without making everything else look very wrong.

http://inverseroom.creotia.com/pictures/fire.jpg

gdi
02-08-2009, 13:09
I think that is from the heavy IR in the fire coals - an IR filter may help. I have seen the same with the M8, where coals were magenta and flames were yellow...

mabelsound
02-08-2009, 13:20
Aha, I see...I don't have an IR filter...it hasn't been an issue. But I didn't realize hot coals emitted IR. Weird.

sirius
02-08-2009, 14:03
FYI,

I see the problem with an IR colour cast in my RD-1 files when I shoot at a high ISO and then try to lighten the picture.

hans voralberg
02-08-2009, 16:55
Try using lightroom colour luminance pick and adjust magenta individually ?

mabelsound
02-08-2009, 17:55
Try using lightroom colour luminance pick and adjust magenta individually ?

If I cared about this pic, that's what I would do, I think. I could get it white that way, maybe...in any event, the good photos from this batch don't have the fire in them.

WoolenMammoth
02-08-2009, 18:11
that color makes sense when you white correct for green.

LCT
02-09-2009, 00:27
...I couldn't make it yellow without making everything else look very wrong...
Magenta hue +100. Could be worst.

mabelsound
02-09-2009, 03:30
Magenta hue +100. Could be worst.

Ah, not bad, thanks! I will keep that in mind. Maybe saturating yellow and orange a bit could bring it closer still.