Default Phone Vibrates on launching camera

Hi,I have searched the forums and have not found anything so please forgive me and delete this thread if one does exist about my particular problem.

When ever I launch my camera the phone begins to vibrate in the same manner as when the phone is on vibrate and a call is coming in. It is very annoying as I have to wait about ten seconds sometimes for it to stop before I can use the camera to take photos.
Sony Ericsson P910i- Sony Ericsson P990I - Samsung i8910hd - Samsung Galaxy S2 - iPhone 4s (blasphemy) - Galaxy Note III