TIP: Side-by-Side Photo Review in CS2

This little feature must have slipped under the radar, because most every time I use it, somebody always asks how I did it. It automatically lets compare two similar images side-by-side from right within Photoshop. Just open both images in Photoshop CS2, then go under the Window menu, under Arrange, and choose Tile vertically, and they'll be instantly lined up side-by-side. Now, take it step further--go under that same menu and choose Match Zoom and Location. Now, hold the Shift key down, and when you scroll or zoom-in on one photo, the other side-by-side photo will move and zoom at the exact same time. Give this one a try.