I have a silver hexar, so maybe that version has some extras. The point is that by pressing the up or down button ONCE only with the shutter button half depressed, the camera automatically sets the right shutter time for you. You don't need to push the up and down buttons until they both light up, the camera does that immediately. It's like an aperture priority spotmeter with instantaneous AE lock. It works for me because it's a very fast and reliable way of setting exposure, and I have sufficient motor skill for the finger gymnastics...