On Spears & Munsil and Disney WOW disk there are 2 different types of Contrast tests. One shows the white test pattern bars going from 231 to 254 and the other shows 4 squares of White, Blue, Red and Green.
Right now I am using these tools on a Samsung E7000.
If I start at full contrast (100) I need to lower the setting to 98 to see all of the white bars on the test pattern.
When I get to the Clipping test, the white and green squares show the concentric boxes fine but the red and blue do not. To see the concentric squares in the red and blue boxes I need to turn down the contrast setting to around 83.
My question is which setting is technically correct, or which of the settings should I be using?