Contrast ratio results for l227wtg

Contrast ratio 6699:1 (edge: 10546:1)
Monitor model l227wtg
Submitted 27 Sep 2010 18:44 CEST, by 71.231.*.*
Camera model Canon EOS REBEL T2i
Processing remarks

Warning: image file 1: camera was zoomed out too much.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 51.5 s (Set EV to +7.7)
Warning: image file 2: camera was zoomed out too much.
Warning: image file 2: Underexposed. Please increase the shutter time.
Note: image file 2: suggested exposure time: 1/130 s (Set EV to +1.6)
Warning: image file 3: camera was zoomed out too much.
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 81.1 s (Set EV to +8.3)

Black
Screen photo
Luminance 0.01 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –10.19 stops   (aim for –2 to –3)
Exposure spread 0.4 stops
Area used for calculation 0.1 x 0.113
Camera settings Exposure time: 1/4   ISO: 400   F-number: 3.5
Focal length: 1.4 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 60 cd/m2
Luminance spread 6 cd/m2 (2 standard deviations)
Exposure value –4.1 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.1 x 0.113
Camera settings Exposure time: 1/395   ISO: 400   F-number: 3.5
Focal length: 1.4 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 0.01 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –10.84 stops   (aim for –2 to –3)
Exposure spread 0.43 stops
Area used for calculation 0.1 x 0.113
Camera settings Exposure time: 1/4   ISO: 400   F-number: 3.5
Focal length: 1.4 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.