Originally posted by disya2 Note sure if it is shutter sound. In m-up mode mirror flips up with the same sound as it was before but when I press shutter second time I hear that strange louder sound again.
As others have noted there may be something else contributing to what you are hearing. Does it happen with All lenses? If you can narrow it to one, perhaps what you are hearing is the Aperture stopping down. That would be the upside for your camera. Something else that comes to mind is perhaps some little foreign object is caught in the shutter. I assume, that you're able to take photos as normal, just with the changed shutter sound, Correct? Photos are properly exposed? No strange light traces on your photos? If you exhaust all other possibilities, I would suggest sending it for service while it is still under warranty. The shutter should last at least 100K actuation's by all accounts. At 10K it's just getting warmed up.
Good luck with it and keep us posted. Don't know how many other K7s have gone to 10,000...