Hi, i have a Sigma 50-150 f2.8 and I use it on my K-01. the lens wont focus when I press the focus button. I've read somewhere in the forum that the lens does not work in Live view mode. I've sent it to CR kennedy and tested on a K-3. It did focus normally when it was not in live view but when i switched to live view, same problem happened. The lens did not focus. It was moving back and forth. So, just want to make sure that does updating the firmware of the lens really fix the problem?
Thank you