Thanks, guys, for your help. I haven't had the 100/2 for very long, so I haven't had a chance to use it much, especially wide open. In addition to the Bessa-T, I have a Canon-P that I had originally planned to use the lens with (because of the built-in frame lines). In your opinions, would the T or the P be the better choice for the 100/2, shooting wide open?