Photographing with my "old" alpha 7RII a show in which there was a screen with a video projection in the background, I found the following problem: If I shoot with the shutter at over 50, I get a few streaks on the projection, but the funny thing is that it only does when the camera is set to silent shooting. If I turn off silent shutter mode, it no longer does ... Can anyone explain this strange behavior to me? I need to be able to take silent photos during the show and I need to shoot at high speeds ... any solution? Thank you so much.