Contrast ratio results

Contrast ratio 316:1
Monitor model
Submitted 17 Feb 2012 05:11 CET, by 68.63.*.*
Camera model Olympus E-520
Processing remarks


Black
Screen photo
Luminance 0.55 cd/m2
Luminance spread 0.84 cd/m2 (2 standard deviations)
Exposure value –2.13 stops   (aim for –2 to –3)
Exposure spread 2.9 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 0.7   ISO: 400   F-number: 2.8
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 3
White
Screen photo
Luminance 174 cd/m2
Luminance spread 20 cd/m2 (2 standard deviations)
Exposure value –1.27 stops   (aim for –2 to –3)
Exposure spread 0.17 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/250   ISO: 400   F-number: 2.8
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 1

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.