The iPhone Photography Book

Change Your Thumbnail Size by Pinching

When you’re in All Photos view, or inside an album, there’s an awesome way to change the size of your thumbnails (from the normal size, shown above left). Just tap-and-pinch outward onscreen to zoom in (like you see above center, where the thumbnails are now huge. In fact, if I had pinched outward just a little further, the thumbnails would be so large that only one would appear). You can also tap-and-pinch inward (like I did above right) to shrink the thumbnails to where more fit in the same space.