I recently started setting my DSLR to save RAW files, and using Adobe Lightroom to process them. I still, however, use my little point and shoot camera a lot which does not have an option to save RAW files. I've also noticed that in light-room the white balanced options are different with RAW files vs JPEG files. With RAW files you have the option of choosing from a number of white balanced settings (florescent, halogen, auto etc..), whereas with JPEG you do not. Why is this?
Answer
The quick and short answer:
All images start as RAW files that must have colour balance applied to them.
For jpeg images this transformation is done in the camera using the camera white balance settings. As mentioned above, Lightroom does not have enough information to undo this transformation.
Saved RAW files have no transformations applied by the camera, allowing you, the photographer, to decide later which white balance transformation you wish to apply.
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