Datavideo SE-4000, Instruction Manual

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if the subject is farther away from the backdrop (no shadows). The foreground lighting
on the subject will also vary according to the effect that you are looking for.
After the studio set up is complete, connect the camera shooting the speaker on a green
backdrop to the SDI Input 1 at the rear of the switcher. To configure the settings that will be
used for chroma keying, press the MENU button on your SE-4000 control panel to open the
GUI menu on the monitor. Follow the steps below to configure the chroma key settings.
1. Open the Keyer menu and select Key 1.
2. Select “Chroma” and “Self” in “Keyer Ctrl”