Originally posted by Edgar_in_Indy Yeah...it's a strange kind of wump wump wump noise. The harder the IS is working, the more pronounced the sound becomes in the video.
Interesting. I have the feeling the microphone in the K-5 doesn't pick that noise up, at least I haven't noticed it. When I hold the camera in my hands, in a quiet room, I do hear something. But not on the video, at least nothing that stands out. But regardless, the microphone in the K-5 is terrible. Even by digital camera standards. It clips easily, there's always noise in the background (not related to SR, you can also hear it when the camera is on a tripod), the sound lacks bass and highs...
You can always attach a small microphone to your camera if you actually care about sound, and if not... do you care about the wump?
In contrast my smartphone has movie SR, and it looks significantly better than the movie SR that I've witnessed in the K-30. Not to say that it is any good. In the K-30 the whole image wobbles. It's stationary on top, and the lower you get the more it wobbles left and right. Then there is what I'd describe as motion blur, just that it happens with a stationary image. So suddenly the video has for example light streaks instead of a stationary light source, and the light streaks go in different directions for a few frames, then stop, come back, ... very irritating. My smartphone at least eliminates the wobbling...