Connect the rocker arm monitor with 5D2. Why is there no signal on the monitor? The camera's LED is also black. How to set it?
What brand of finder? Hdmi or video terminal? In the menu settings, the disable of "Control via HDMI" was changed to enable. Only by looking back at the display in real time can there be signal output. The default output is 1080I signal. It depends on whether your viewfinder supports it.