I saw this popular effect recently in a Xerox print ad that ran in USA Today. When I took a close look at the ad, not only was the magnification effect created from scratch, but the magnifying glass as well. It's actually very simple, thanks to Felix Nelson (the photo-realistic genius guy) who figured out the gradients you'll need to create a realistic magnifying glass. (Note: If nothing else, you'll want to keep Felix's great metal gradients for future use.)
Quick Tip: Seeing Meta-data with the naked eye
Back in Photoshop 7's File Browser, you could view the EXIF data embedded into most digital camera files (including things like the make and model of the camera used, f-stop, exposure, flash status, etc.), but this info ...