Das hier ist keine DIY-Kamera in einer umgebauten Pistole, sondern eine offizielle (alte) Videokamera der japanischen Polizei.
The following research is a 16mm camera like a joke. This camera is a serious camera for the police, and not a toy. It is a pistol camera DORYU 2-16 famous as rare and valuable camera. The DORYU 2-16 has the same C mount as the 16mm movie camera. A Cine-Nikkor 25mm F1.4 lens was able to be mounted in the DORYU 2-16 pistol camera. You can find the small lens for GOLDECK 16 on the table.