|Contrast Value||20:1 ratio|
|Overall Size||15.58 in. x 9.45 in. - 395.7mm x 240.1mm|
Measurements to 8000 lines can be performed in the center and all 4 corners, in both 4:3 and 16:9 ratios. Wedges of 4 dark lines converge to allow measurement of digital camera resolution up to 8000 TVL ("lines per picture height"). The chart is arrayed for both 16:9 and 4:3 ratios.
The QA-70D-1-B-P-RM has a contrast ratio of 20 to 1.