Contrast ratio results for Asus VE228

Black
Contrast ratio	4011:1 (edge: 3844:1)
Monitor model	Asus VE228
Submitted	02 Apr 2011 04:42 CEST, by 24.209..
Camera model	Motorola Droid
Processing remarks	Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 34.8 s (Set EV to +10.1) Warning: image file 2: automatic white balance can cause inaccuracies. Warning: image file 2: Underexposed. Please increase the shutter time. Note: image file 2: suggested exposure time: 1/36 s (Set EV to -0.3) Warning: image file 3: automatic white balance can cause inaccuracies. Warning: image file 3: Underexposed. Please increase the shutter time. Note: image file 3: suggested exposure time: 33.4 s (Set EV to +10.1) Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.02 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–10.62 stops (aim for –2 to –3)
Exposure spread	0.58 stops
Area used for calculation	0.433 x 0.434
Camera settings	Exposure time: 1/8 ISO: 200 F-number: 2.8 Focal length: 30 mm (35 mm equivalent) Exposure compensation: 1.99
White
Screen photo	[open image]
Luminance	68 cd/m2
Luminance spread	10 cd/m2 (2 standard deviations)
Exposure value	–4.23 stops (aim for –2 to –3)
Exposure spread	0.21 stops
Area used for calculation	0.433 x 0.434
Camera settings	Exposure time: 1/120 ISO: 63 F-number: 2.8 Focal length: 30 mm (35 mm equivalent) Exposure compensation: -1.99
Black at screen edge
Screen photo	[open image]
Luminance	0.02 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–10.56 stops (aim for –2 to –3)
Exposure spread	0.81 stops
Area used for calculation	0.433 x 0.434
Camera settings	Exposure time: 1/8 ISO: 200 F-number: 2.8 Focal length: 30 mm (35 mm equivalent) Exposure compensation: 1.99

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.