The new method uses an oscilloscope with photo sensors for response time and input lag measurement. Regarding the input lag the "control signal" is used as basis point.
Best regards
Denis
wowsers so much technical stuff. I just bought it and like it. But from a professional standpoint I can see how it matters and to whom it would matter. Most hard core, really hard core, gamers are younger and cant necessarily afford this higher priced displays. (Not everyone of course). So a little 20ms input lag doesn't hurt my older less sensitive retinas haha I'd rather have a bit more color, less eye strain, and easier text reading, that is capable of playing FPS games with-in my sensitivity to motion range rather than some 120hz ultra fast washed out performance only TN.