Wow! This is an informative topic. That's why when I tried the Sigma 50/1.4, on AF its missing the target. When I switched to MF (w/ AF confirmation), its still not hitting the mark. But when I neglected the AF confirmation on MF & strictly trusted what my eyes see thru the VF, it started showing significant sharpness in pics shot within 5-15 feet.


Thanks a lot guys for the inputs! I'll keep those ones you posted in mind most of the time.[]