Picture-in-picture 3D Test – HMZ1U (3D) Posted on July 5, 2013October 24, 2018 JVC GY-HMZ1U test footage. I built a special pair of 3D glasses to go over the front of the camera so that each “eye” in the camera could only see the corresponding eye on the monitor. Thus, the footage on the monitor appears to be in 3D.