PTZCam View NDI Mini - PTZ Controller with NDI Video PreviewCompact PTZ Controller with NDI for Churches and Schools The View NDI Mini from PTZCam is a compact PTZ camera controller with a 3. 5 inch color display. The display functions as a video preview monitor for NDI HX, RTSP, and ONVIF camera sources, enabling direct monitoring of each camera's position without the need of a separate monitor. This compact controller features a smooth 3D joystick, zoom rotary wheel, preset buttons, and four encoder knobs