interesting.

"Input lag is virtually zero based on our testing. This is obviously great for gaming, but just compared side-by-side to a typical Dell office monitor it is actually noticeable when moving the mouse around on the desktop."

a question would be, if they disabled "AERO" when moving the mouse around on desktop.
"AERO" on means v-sync, which doesn't really affect the CRT they must have used for comparision when it comes to inputlag.

another try:
At some review of FG2421 ( http://www.pcgameshardware.de/LCD-Hardware-15...t-1094860/ ) names 15ms of input lag. They compared this 1920x1080 LCD at 120hz with CRT....Where they found CRT that can handle 120hz at 1920x1080? Better to wait more adequate tests of input lag and other benchmarks of two new displays(from benq and eizo) at http://www.blurbusters.com/ Each of this monitor has unique motion blur method (Lightboost like).

I got this information from a post in the FlatpanelsHD forum.
Of course this is only his theory and I for one will still await the in depth reviews of MotionBlur and Prad.



"The manual explains how the turbo works:

step1: screen is refereshed with heavy overdrive and backlight off
step2: next frame, screen is refreshed with the same image with no overdrive and backlight still off
step3: when image is set at some time of step 2, backlight is lit (short strobe)

Given the above we can say turbo adds at least 4.2ms delay vs turbo off as the image is not shown at the 1st refresh but only the 2nd one (with 240hz refresh). As backlight is lit somewhere within the 2nd pass (the one showing a duplicate of the previous refresh) a bit more time should again be added.

Though we don't know precisely when backlight is lit on the 2nd refresh. If it is lit for 1ms at the very end of the 2nd refresh then that would mean 3.2ms more to add (about 7ms more that without turbo in total).

But we have to consider that with turbo the image is displayed sharp as soon as it becomes visible (as it was prepared during the time backlight is off). So subjectively that should lower the added delay at bit.

Of course as you said there may certainly some processing time, but we have to consider the above additional time is added to it."

- neel @ FlatpanelsHD forum

Thread right here: http://www.esreality.com/post/2473122/240hz-monitor/

nice review
display-corner.epfl.ch/index.php/EIZO_FORIS_FG2421