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, in both 4:3 and 16:9 ratios.
The QA-70D-1-E-P-RM has a contrast ratio of 1.15 to 1.
15.58 in. x 9.45 in. – 395.7mm x 240.1mm