For best result, you should be able to differentiate 10 shades in the below scale.
If not, adjust brightness / contrast / gamma. (100% - 90% in particular)
Supercar Club H.K Sepang Track Day 2007
Asia SuperCar Challenge 2007 Rd 1&2
ZIC FIA GT 2004 & TRACK DAY APRIL 2005
For best result, you should be able to differentiate 10 shades in the below scale.
If not, adjust brightness / contrast / gamma. (100% - 90% in particular)