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01-06-2009, 07:28 AM   #1
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Tungsten WB with daylight???

I tried a search and couldn't find the answer. This has happened to me several times and I don't know how to handle it. If I take a picture which is primarily lit by tungsten lights and I set my white balance to tungsten, any natural light (such as window light) shows blue.

I have posted an example which shows what I mean. See the blue light from the window? Well, I don't like that What can I do differently?

Thanks....



Exif:
Focal length:28 mm
Focal length (35mm):42 mm
Exposure:1/40 at f/2
Flash:Not fired, compulsory mode
Exposure bias:+1/3 EV
Exposure mode:Manual
Exposure prog.:Aperture priority
ISO speed:ISO 400
Metering mode:Center-weighted average

01-06-2009, 07:30 AM   #2
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What happens if you turn off AWB and manually set the WB using the existing lighting?
01-06-2009, 07:34 AM   #3
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QuoteOriginally posted by FuzzyOne Quote
I tried a search and couldn't find the answer. This has happened to me several times and I don't know how to handle it. If I take a picture which is primarily lit by tungsten lights and I set my white balance to tungsten, any natural light (such as window light) shows blue.

I have posted an example which shows what I mean. See the blue light from the window? Well, I don't like that What can I do differently?

Thanks....



Exif:
Focal length:28 mm
Focal length (35mm):42 mm
Exposure:1/40 at f/2
Flash:Not fired, compulsory mode
Exposure bias:+1/3 EV
Exposure mode:Manual
Exposure prog.:Aperture priority
ISO speed:ISO 400
Metering mode:Center-weighted average
Out of the box, probably not much. Tungsten light is like 2500K, daylight is 9000-12000. Correct for one, get a tint in the other.
f you were doing this professionally, you'd probably put tungsten spots to shine though the window.
You can correct in post process w/ masking ect. but a PIA.
01-06-2009, 07:36 AM   #4
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The WB was set to tungsten, not AWB. I try to avoid AWB and select what the primary lighting is. I think the colors are accurate with the exception of the window light.

01-06-2009, 07:42 AM   #5
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Another example:

01-06-2009, 07:44 AM   #6
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Shoot with a daylight WB and put up with the colour of the photo being yellow like the tungsten light.
Put a bastard amber filter on your windows.
Turn off the lights and shoot with available light.
Don't shoot in tungsten light with a window showing in the picture.
Do some hinky Photoshop magic.

Daylight and tungsten are ( as you've shown) are very far apart for colour temperature. In fact your picture is a great visual lesson for mixed lighting.
Sadly, it's pretty much the nature of the beast, or at least the physics of the situation.
In this case, the colours are perfectly natural, given that you have chosen to give importance to the tungsten light rather than the daylight. Had you given importance to the window light (daylight WB) the window and tungsten illuminated areas would both be the right colour, with the image reflecting the very far from daylight colour of the tungsten lights as yellow, which is, in reality, correct.
01-06-2009, 08:06 AM   #7
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BTW: Tungsten balanced film will do the same thing w/ daylight. Awful blue-green mess if no tungsten light in the picture...
Also if you switch over to compact flourescents or LED the problem is lessened.. Easier then changing the color of the sun
Of course nobody made an LED wax candle.... with the candle shot it would have been better to just use AWB and adjust a bit in post.
01-06-2009, 08:50 AM   #8
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You could turn off the lights in the kitchen and use a flash bounced off the ceiling. Flashes are balanced for daylight/sunlight color temperature, so you wouldn't have a color balance problem, and bouncing off the ceiling will give you similar light to what the overhead lights are already providing.

01-06-2009, 11:04 AM   #9
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You could put filter gels on all of your windows.
01-06-2009, 11:12 AM   #10
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you can just use the colour sliders to saturate/tint the blue colours to your liking...

ofcourse you're ****ed if you have a large amount of blue in the scene

then again if you're really set on getting the picture right you can use selective layering through photoshop (or other) to only change the tones in a specific area
01-06-2009, 02:16 PM   #11
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We humans are more tolerant of images that show reddish tints than to excess blue. In your favourite editing software try changing the colour balance more to the tungsten side.
01-07-2009, 09:05 AM   #12
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Thanks for the replies. I kind of figured there was no easy answer. Next time I might try the bracket feature with white balance set to daylight and tungsten and then fix it in PS through layers.
01-07-2009, 09:51 AM   #13
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QuoteOriginally posted by FuzzyOne Quote
Thanks for the replies. I kind of figured there was no easy answer. Next time I might try the bracket feature with white balance set to daylight and tungsten and then fix it in PS through layers.
If you shot it in RAW you could develop once for daylight and once for tungsten white balance saving you from having to bracket for white balance.
01-07-2009, 12:35 PM   #14
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That's because the outside ISN'T lit by tunsgten lighting

Not much you can do, except perhaps gel the window, OR if you use a hot-shoe flash, those are usually daylight balanced so the temperatures would match.
01-07-2009, 01:23 PM   #15
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I think the candle photo looks pretty cool with the lighting the way it is. Whet kind of light bulb is tungsten? I usually leave my setting on AWB.
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