Compare images side-by-side directly within the Mac Finder
You can quickly compare any two images side-by-side by using Mac OS X’s QuickLook feature.
* Select the two pictures within the Finder that you want to see side-by-side
* Hit the Spacebar to enter into QuickLook mode
* Click on “Index Sheet” at the bottom of the Quick Look window (it’s the icon with four tiled windows)
* The Escape key exits side-by-side view, and hitting Spacebar again or clicking away from the window exits QuickLook mode
Assuming you have the screen resolution to support it, there’s no reason you can’t compare four or even twenty images side-by-side with this method. This is a really handy tip for photographers and graphic artists.
[ via Abstrukt ]