Originally posted by Medium FormatPro Once one does turn on the Pentax K-01 or takes a photograph and then lets the camera remain on; then even minues after the pics was taken, the camera does in fact change the aperature. Not sure as to how long this occurs though.
That's the ticket. All you have to do is turn the camera toward you with a window in the background while using a prime lens and watch the lens stop down. I guess if you really hated that sound your best solution would be to shoot in aperture priority!
It should stop once the camera enters standby mode (I prefer to set that at one minute to save on the battery).
JNR