Contrast ratio results for BenQ

Black
Contrast ratio	3750:1
Monitor model	BenQ
Submitted	31 Mar 2011 13:44 CEST, by 94.143..
Camera model	Canon EOS 1000D
Processing remarks	Warning: image file 1: camera was zoomed in too much. image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 2: camera was zoomed in too much. image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. Note: image file 2: suggested exposure time: 1/430 s (Set EV to -1.4)
Screen photo	[open image]
Luminance	0.09 cd/m2
Luminance spread	0.07 cd/m2 (2 standard deviations)
Exposure value	–3.26 stops (aim for –2 to –3)
Exposure spread	1.17 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 5.2 ISO: 400 F-number: 4.6 Focal length: 132 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	340 cd/m2
Luminance spread	145 cd/m2 (2 standard deviations)
Exposure value	–1.14 stops (aim for –2 to –3)
Exposure spread	0.63 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/166 ISO: 400 F-number: 4.6 Focal length: 132 mm (35 mm equivalent) Exposure compensation: 0

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.