waegwan wrote:
I have my camera set to shoot RAW and JPG so I can see the same shot side by side on my monitor at the same time. The RAW photos have way more detail in hairs, leaves, lines, cracks in walls, you name it, when it gets down to the super sharp details the RAW files will show a lot more than the JPG.
Typically, raw files have considerably more information (image color and tonal values, dynamic range, etc) than out of camera jpegs, which start off as raw and are then processed by the camera according to the parameters you set for contrast, sharpening, color saturation, color space, etc. When a camera does this, the changes are "baked in" to the resulting jpeg. The values that are not chosen for the final image are then discarded. finally, the image is compressed considerably. There is no going back, and if you open the file to perform an edit - you'll find that there is less latitude available for changes.
Using a raw file in a raw converter - Lightroom, Capture One, Adobe Camera Raw, Aperture, DXO Optics Pro - ensures that all data captured by the camera is available for edits.
Raw files have from 1-3 stops more dynamic range than jpegs, and they have more headroom before clipping on the individual channels of red green and blue.
Making a "correct" exposure for a jpeg "may" be different than for a raw file. For a jpeg, you strive to get the middle tones correct, which in some cases may mean that you sacrifice the darkest and the lightest tones. When you record raw, you have the luxury of preserving the highlight detail, allowing the rest of the image to be modestly underexposed, and you end up with a dark unprocessed image, but a couple of adjustments to the shadow recovery and exposure sliders will bring back the colors and tonality. The difference will be that your highlights will not be overexposed, and everything else will look very good. Depending on what you shoot, this can be a compelling reason to avoid shooting raw+jpeg. For some it may not make any difference, but for others it will.
Lastly, adjustments to color and white balance, tones, exposure, local contrast, highlight and shadow recovery, exposure, etc are more easily done and are more effective if you do then to a raw file. If you use Photoshop, you have the editing commands in Adobe Camera Raw available as a filter, but if you tweak things to far they will appear posterized and generally not nearly as nice as when you make these changes in a raw converter.