EOS 5D Mark IV: Live View histogram

When shooting in Live View, the live histogram is one of the most useful features, especially when shooting landscapes. It allows you to see, in real time, the exposure of the image with your current settings. To access it, press “INFO” repeatedly until it appears on the Live View display. If it doesn’t come up, then you’ll need to check the camera menu – the Live Histogram can only be displayed when “Exposure Simulation” is set to “Enable”.
Camera settings
EOS 5D Mark IV