This is a Sony HVM-100CE handheld vidicon camera from the 1970s. These cameras are portable versions of the studio type vidicon cameras like the AVC-3200CE and were used for mobile videotapings which the cameraman has one of these cameras connected to a portable 1/2" EIAJ standard reel-reel VTR which uses mini 30 minute reels. These would of also been popular in the education field for outdoor shootings like sport matches, excursions etc. Anyways this camera works but the picture is way out of focus and spotty. I got with this camera a Sony HVS-2000P camera selector/effects unit which this camera plugs into to be operated.