Demo Video of Backup Lines
This video is just for reference purposes only;
not to be shared.
Taken with a cell phone directly off of the monitor with no respect paid to lighting, etc.
The image below shows the markers set for the Measurement Test 4/21. These are photos of a live video screen not using a video capture card so they are poor at best.
Note: this is for a camera placed at 109 inches. Camera height placement and camera angle will affect these readings.