Dunno if anyone here has this lens. I wanted to know a couple of things though: (a) How good is the drawing? I have a Tamron 17mm, which is exceptionally good in this regard. Not a hint of barrelling; just barely visible pincushion at close distances. I'd be very happy to keep this one, except for the usual difficulties of manually focusing an ultra-wide, coupled with that I don't think the distance markings on the Tamron have much relation to reality (standing at the end of the bed and focusing on the window frame, it reads 1 metre, should be closer to 2! ) (b) is it sharp?