Thanks, everyone. This whole thread is moot now, as I sent the Caltar back, and lost the auction on the identical model. So I'm back to the original B&L in the Betax shutter. I'm happy enough for now. The glass is beautiful and I did a fine job on the shutter. The thing is, nobody can tell me that lens nicks, especially dead center like that; don't mean anything. I've spent nearly my whole life wearing glasses, which are usually dirty. I just live with spots most of the time, and it DOES matter.