Hello, I've actually never been interested in shooting video with my K5, actually other than a few tests I've never done it. But yesterday I did shoot a video of the Mexican Soccer Team arriving at the Costa Rica airport for the match against the CR team tonight.
The thing is, the News people didn't know where the team would come out of the airport, and I was on the other side of the airport with view to the ramp so I shoot a few seconds of video (720, 30fps) when the bus was leaving. I sent it to a friend that works on a TV channel and they used the video.
I used my Silver K-5 with a Sigma 150-500 OS HSM. I did found that I had to keep the shutter button half-pressed in order to keep the Sigma with the OS on. I've just notice this because this is the first time I shoot video (with the K-5 and with the Sigma 150-500 OS).
Here's a link to the youtube video of the news aired last night. My part is the Bus moving on the airport ramp.
Cheers