http://www.luminous-landscape.com/reviews/cameras/k7-hands.shtmlAutofocus
I'm not sure what to say here. When sitting quietly and testing the camera, whether with stationary
or moving subjects, autofocus seems to do its thing properly, whether one is using multi-point or
single point. But, in the heat of rapid shooting, when subjects are moving quickly, such as dancers
or athletes, I have the impression that the AF hunts more than I'm used to with either current
Canons, Nikons or Sonys. It's almost as if the camera is taking a moment to consider what to do
next.
Can I benchmark this? No. Can I demonstrate this to someone else on a consistent basis? No. But from
time to time, when I'm working quickly, I feel that the K7 is intruding on my fluency of shooting.
If you're contemplating the purchase of a K7 (rather than just nattering about it on a web forum),
and plan on shooting sports or other fast action, you might wish to experiment with this and see if
you share my experience.
I also find the AF slow to lock on when the camera comes out of sleep mode with a button press. The
various Canons and Nikons and Sonys that I'm used to seem to do so almost instantly, while the K7
again seems to pause as if gathering its thoughts before finding focus.
Pentax cameras have long been criticized for not have as responsive an AF system as some of their
competitors. Reportedly the K7 is improved, and I certainly wouldn't call it poor when it comes to
autofocus, but it doesn't quite seem in the same league as it's prime competitors.