Mine is in for repair for the 2nd time, aperture jammed open and now the back element is loose.
When it worked it was great, super sharp, sharper than I need, shot a f2 often, focus was fast and sharp, especially good for low light and equal best into the light....
I love mine. No problems ever, just great sharp images with the best bokeh. The 50 on the other hand has all the symptoms you describe. I'll be sending it in shortly.
Tyson Egbert wrote:
I am putting this in the wedding section because I know a lot of wedding shooters use this lens and have had issues with it.
I purchased a used Sigma 85mm 1.4 on the buy and sell board a few months back. When it arrived it had a focusing issue. It would not lock focus on just about anything and it was worse the closer I was to a subject. I contacted the seller and he would do nothing for me. Said I was making it up.