Contrast ratio results for Macbook pro

Contrast ratio 846:1
Monitor model Macbook pro
Submitted 28 Dec 2010 21:44 CET, by 86.138.*.*
Camera model CASIO COMPUTER CO.LTD. EX-Z1050
Processing remarks

image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: Image F-number settings are not the same.

Black
Screen photo
Luminance 0.4 cd/m2
Luminance spread 0.41 cd/m2 (2 standard deviations)
Exposure value –3.07 stops   (aim for –2 to –3)
Exposure spread 1.65 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 0.5   ISO: 400   F-number: 2.8
Focal length: 38 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 338 cd/m2
Luminance spread 116 cd/m2 (2 standard deviations)
Exposure value –1.34 stops   (aim for –2 to –3)
Exposure spread 0.5 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 1/250   ISO: 400   F-number: 4
Focal length: 38 mm   (35 mm equivalent)
Exposure compensation: 0
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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.