Originally posted by dlacouture Must be near silent, then... First pic I took with my K7, I thought "Damn, this thing is broken, mirror has not moved or something!"...
The K7 is very quiet too. Although without even listening specifically for it, I did notice the K5 was even quieter. I then closed my eyes (just to make sure I wasn't biased) and had each camera handed to me and fired off the shutter to see if I could really tell the differences. It also feels "softer" in terms of what you feel when you hold the camera and take a shot. I had my wife listen as well from about 5-6 feet away and asked her which was louder and it was obvious to her to that the K5 was quieter.
That said, the difference between the K5 and K7 is far less than the difference between either of them and the Kx, which feels downright "rough" in comparison (for the record I have no issue with the Kx shutter on it's own, it's just in comparison it's a bit less refined).