Making Your Photo Bigger? Do It In RAW!
Another advantage of working with RAW images comes when you need to make your image larger than the original. Of course, this is generally thought of as a big no-no because making a photo bigger than it’s original usually means a major loss of sharpness and quality, but if you’re shooting RAW, well…not so much. Well, not nearly as much. So, all you have to do is go to Camera Raw’s Workflow Options (in the bottom-left corner of the dialog), and from the Size pop-up menu choose a larger size (make sure you also choose 8 Bits/Channel for your depth), and you’ll get much better results from your forbidden upsizing than you would have if you tried to do the same thing in Photoshop using the Image Size dialog (under the Image menu).