This Photoshop tutorial shows how to give ourselves two different views of the same image by opening it in two separate document windows, each set to a different zoom level, making it much easier to judge the effect our edits are having on the overall image. You can always zoom in to make a few edits, zoom out to the 100% view size to judge the results, zoom back in to make a few more edits, zoom out, back and forth, on and on, but who wants to do that, especially when there’s a much better and easier way.