Help! Red overcast Nex-7

Started Jul 4, 2012 | Discussions thread
Mark_McD
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Re: wasn't trying to say what you generally "should" do
In reply to Taylor Sherman, Jul 5, 2012

Taylor Sherman wrote:

I really don't think that's just a white-balance issue. First, since when do you ever get a magenta cast from any form of lighting when the WB is off? yellow, blue, etc. But never magenta.

And either way, I can't see the results being that bad. I would consider those results a malfunction.

Clearly you're not familiar with film or how WB was corrected in film days (or what it looked like uncorrected). This issue is one of complex-wb, as you can see from images like this:

http://www.cambridgeincolour.com/tutorials/white-balance.htm does a good job of explaining different light sources, color temperatures and resulting corrections.

Sometimes you may want the cast complex lighting can create, like using a flash indoors with incandescent lighting:

some quick flickr images to give examples of this:
http://www.flickr.com/photos/mattbell/3121173206/
http://www.flickr.com/photos/contrasts/200860796/

complex light, magenta shifted background with subject being hit by artificial light:
http://www.flickr.com/photos/lyndakuit/6334138454/

these are all various examples of color shift in portions of an image due to complex lighting situations. wandering into one unprepared for the result it might yield makes for a frustrating experience. understanding how to correct it makes it a lot less troublesome.

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