Wedges of 4 dark lines converge to allow measurement of digital camera resolution up to 8000 TVL (‘lines per picture height’). Measurements to 8000 lines can be performed in the center and all 4 corners. The chart is arrayed for both 16:9 and 4:3 ratios.
The QA-70D-1-A-P-RM has a contrast ratio of 80 to 1.
15.58 in. x 9.45 in. – 395.7mm x 240.1mm