On my recent trip shooting with this combination i have noticed that the lens/camera/both fail to lock precise focus. On a number of occasions when i've used manual focusing it has done a much better job. Image using AF has been quite good, but using MF has been noticeably better. However, doing this outdoors without a tripod has been a pain. Slow internet so cant upload photos to show the discrepancy, will do so in a day or two, but i was just wondering whether other people have had the same problem. Some patterns are very fine and especially so for a 14-24 but this is a consistent problem, been happening for three days now, over which ive shot more than a 1000 photos with this lens. Pretty sure it happened before as well but i never noticed.