Patent ID: 6130717
Filing Date: 2000-10-10
Classification: H04N

Abstract:
An image pickup apparatus comprising a camera main-body unit, a lens unit detachable from said camera main-body unit, attachment/detachment determining means for determining a state of said lens unit attached to or detached from said camera main-body unit, image pickup means, video signal generating means for outputting a predetermined video signal corresponding to a predetermined picture which has a mono-color background, for indicating a misattachment of said lens unit, switching means for selectively switching between the predetermined video signal and the video signal picked up by said image pickup means, monitor means for monitoring the video signal or the predetermined video signal selected by said switching means, and control means for controlling said switching means in accordance with a determination result from said attachment/detachment determining means so as to cause said switching means to select the predetermined video signal in the case that said attachment/detachment determining means determines said lens unit is detached from said camera main-body unit.