Okay, I'm muttering to myself here, feeling rather silly. Just what in the world should I be looking for when I change the zoom of my flash? I've done test shots and changed the zoom setting, but haven't seen a difference. Does zooming the flash to, say, 105mm throw the light farther, or make it harsher or...something? I'm confuddled, and haven't found anything terribly useful in my readings; that and it's annoying that this is the only function on my flash that I don't understand yet. Oh, and futhermore, whatever zooming the flash does, does using a diffuser or bounce card (or similarly, bouncing the flash) negate the purpose of zooming it in the first place?