Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
iPhoto can handle Raw—the special, unprocessed file type that takes up a lot of space on your memory card but offers astonishing amounts of control when editing later on your Mac. Raw is generally available on most newer cameras over $300, and all SLR cameras (those that can handle interchangeable lenses).
Don’t know which photos are Raw files? You could pop open the Info panel to find out (The Info Panel) or take a peek at the top right of your histogram in the Adjust panel, but there’s a faster way. In fact, you can gather up all your Raw files by creating a smart album. Choose File?New?Smart Album and set the pop-up menus to Filename, Contains, and, in the text field, type cr (which stands for “camera raw”). Tada! All the Raw files in your iPhoto library have just been corralled into a single album.