A very good introduction to the wonderful world of RAW, including a peek at Lightroom 3.0 beta. Nice stuff:   "The big drawbacks of raw images are that the files are larger and that you can't share them easily until you've edited them with some kind of software. But here are some of the first advantages I found shooting raw. Some professionals with lots of experience and time to set up shots get everything right. For the rest of us, shots often are overexposed or underexposed. One of the main advantages of shooting raw is better flexibility to correct such problems--in part because of that better color depth than JPEG affords. "Shooting in raw is usually more forgiving than just shooting jpeg files, so should you make a mistake when capturing an image you have a better opportunity with a RAW file to go back and correct any mistakes," said Richard Pelkowski, product manager of digital SLRs for Olympus Imaging America. "We typically encourage our Olympus consumers to shoot in both raw plus JPEG mode so they immediately have both a JPEG file you can easily share and use instantly and a more forgiving raw file that you can go back to later for post processing."   Link   Photo: DXO Labs