White balance in Aperture changes file size drastically?

Started Nov 29, 2012 | Discussions thread
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ralittle2
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White balance in Aperture changes file size drastically?
Nov 29, 2012

I was reviewing some photos I took recently and noticed that my file size was roughly cut in half when I changed from the white balance setting in Aperture from Auto (as shot) to Daylight.  The picture looks fine, but why would one simple change eliminate half the photo size?

Thx,

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