K-5 Vs K-7 AF-C Speed / Frame Rate Head-to-Head Comparison

Hoya claims that the K-5 has an improved-speed AF system (together with a higher continuous shooting rate on specs as well). Let's see how the new K-5 is compared to the old K-7 below!(URL: http://www.youtube.com/watch?v=d4nv2QGktbw)The same lens is used, but unfortunately it's a Sigma. The cameras were put into AF-C mode (with automatic 11 points) with Continuous Frame Shooting mode at Hi speed.