hi all, I'm looking for something like my mZuiko 9-18 for my 5n. I know there is the 16mm but maybe there is something wider (not fish-eye) in Sony's lens line-up that I can fit. I would like it to AF with the EA2 adapter or EA1. If there is a cheap alternative even not AF I would give it a look. Meybe I cahìn adapt my 9-18 but I'm afraid it will vignette a lot, or am I wrong?