This is a 10 section step wedge to allow you to check that you have a full
available on your monitor. You should be able and see the 10 separate tones
going from an all white to a total black.
Stand back, defocus your eyes (so that the screen appears blurry).
Use the slider to match the gray on the right with the gray on the left.
When they look the same, read out the value at the bottom. This is your gamma.
If you do not see a split gray box with a slider on the
right you must set your browser
JAVA permission to Medium.
color test image.
fun to bugger your eyeballs. Try and find the black dot.