If you adjust white balance in camera, does this change RAW file pixel data?

3 years 4 months ago #705537 by Gammill
So if you adjust your white balance in your camera body, is this going to change the RAW file pixel data.  Again, just for adjusting the white balance?

Is there any change then to the RAW file pixel data?


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3 years 4 months ago - 3 years 4 months ago #705541 by Nikon Shooter
WB is just an other way to write data in the RAW file knowing
that RAW files have no colour space.

In any case, this will not affect the file but possibly increase the
file size in a marginal way.

WB being the less critical parameter at SR, set it on Auto, use
a grey card and sin no more! :P

Light is free… capturing it is not!
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3 years 4 months ago #705548 by Gammill
Thank you.

The file size is changed when white balance adjusted?  Why is that?


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3 years 4 months ago #705550 by Nikon Shooter
Marginally, yes… because every bit of info most reflect
the tweak and is recorded.

Light is free… capturing it is not!
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3 years 4 months ago #705605 by Shadowfixer1
I'm not so sure the file size changes because you change the WB. The camera will always record a WB of some type. I can't see the size changing because the readout changes from 5500k to 7200k. The amount of information in the tag file is the same. The actual pixel data is unaffected by any of these choices until applied in a RAW converter. I would think the tag files that have sharpening, contrast, saturation etc. information from the camera is always the same size. The file size changes because of the detail in the image. The more detail, the larger the file.
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