c0re wrote:What serial number/mask I should look for to get V2 preinstalled on XL2720Z/2420Z?
info.benq.us has a downloadable Instructions PDF that lists which serial numbers has V1 firmware.
http://info.benq.us/blog/benq-america-c ... -utilities
Chief Blur Buster wrote:To compare;
-- The 27" panels (XL2720T LightBoost and XL2720Z BENQ) have more strobe crosstalk than the 24" 1ms panels (XL2420TE, XL2411Z, XL2420Z)
Simple answer: Strobe crosstalk is a double image artifact, similiar to 3D crosstalk (faint and showing up during high contrast), but can be seen during 2D blur reduction (strobe backlight) use during fast motion. For most poeple, it is not noticed or distracting in most general regular gameplay on most LightBoost monitors and properly-calibrated BENQ Z-Series. Don't worry about it, as long as you're not using the older Version 1 BENQ Z-Series.
Technical answer: Strobe crosstalk is the double-image effect seen during fast motion, usually only limited to high-contrast edges (caused by incomplete GtG pixel transitions during backlight strobing, incomplete GtG leaking between refresh cycles and showing up in consecutive strobes). The strobe crosstalk artifact is rather intense on Version 1 BENQ Z-series. Now, mostly the strobe crosstalk is noticeable only at the top/bottom edges of the screen, due to the asymmetry of the top-to-bottom LCD panel refresh versus the global all-at-once backlight flash. There are screenshots of strobe crosstalk on the
Blur Busters Strobe Utility page. This is what it looks like when there is
bad strobe crosstalk (PHOTO) and when there is only
minor strobe crosstalk (PHOTO) -- these are photographs of
TestUFO Motion Test: Alien Invasion.