The following is a Plus Edition article written by and copyright by Dick Eastman.
If you have a digital camera with advanced features, and if you have a photo editing program with advanced features, and if you have plenty of disk space on your hard drive, I'd suggest that you create your photos in RAW format.
What is RAW?
This is one time in technology when a 3-letter term is not an abbreviation or acronym for three words. In this case, RAW is just that: raw, unprocessed, unrefined, unchanged, original. In this case, RAW means that the image is just as the camera saw it; the picture has not yet been processed by the camera.
Most digital camera owners do not realize that, when they push the shutter, the camera takes the picture, PROCESSES IT, and then stores the processed image in the camera's internal memory card or whatever media is used. The picture stored inside the camera is actually quite different from what the camera saw and, for simpler applications, that is a good thing.