Lens is the old 24-85mm USM. The autofocus works perfectly, no issues there. But the manual focus 'skips' when you try and move the focus ring. That's whether it's switched to AF or MF. Move the ring fast, and I may get to catch, but other times moving it slowly gets it to catch. I'm going to open it up, but was wondering if anyone has experienced this before, and what the problem was. It's typically the other way around, so I thought it odd that AF works, but not MF. And no, I won't send it somewhere to be fixed (not worth it).