Played the Sigma lottery and lost.
Sigma 30mm 1.4 - arrived today. Front focusing like an insane amount. I used teamspeed's DIY focus sheet. (see attachment below). I focused on the bottom curve in the S. EXIF data is 1/320, f2.0, iso200.
Should I return to Amazon and request another? Or go with Sigma warranty and send it in for calibration? Will they need my T2i body to calibrate it?
Any other suggestions?