The only thing I've managed to do with the camera is rotate it from about 3/4 overhead down incrementally to about 1/4, via mousewheel. Couldn't find any other controls for it personally.
I am becoming a bit disillusioned with the game all in all. Mostly this is due to a repetitive feel. Maybe it's because I'm generally taking passive talents but I'm killing things the same way now at level 21 or so as I have been since I nearly started. The enemies haven't really varied yet, and the quests so far have all been identical. The environments do vary a lot, and they are all gorgeous so far, but graphics haven't ever been enough to save a game for me... though I wouldn't mind more lush Estheria levels! (floors 12-15ish) I had a moment of graphical bliss there when a bunch of elemental spirit floaty orb things attacked and the screen was filled with glowy elementally magics, all without my game slowing at all.
Tried to interest a friend in the game but my sales pitch sounded halfhearted even to me, and I'm getting the feeling that so long as you don't really hate the idea of replaying games, you may be best served just replaying Diablo 2 or whatever. Then again, I suppose the $20 price tag justifies some lower expectations. It certainly isn't a bad game.
Note: if you're collecting those 3 rune things through the portals in Estheria, make sure to have them in your inventory when you finish the quest. I had two in my stash due to severe lack of bag space in the game and they remained in my stash. Now as far as I can tell I have no way to get rid of them.

Maybe I can pull them out of the shared stash onto a mule type character...