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Contrast ratio results

Contrast ratio 1086:1
Monitor model
Submitted 24 Dec 2008 04:03 CET, by 68.174.*.*
Camera model Olympus E-410
Processing remarks

Warning: using the flash makes no sense.
Note: image file 1: suggested exposure time: 3.6 s (Set EV to -1.1)
Warning: using the flash makes no sense.

Black
Screen photo
[open image]
Luminance 0.08 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –1.37 stops   (aim for –2 to –3)
Exposure spread 0.91 stops
Area used for calculation 0.724 x 0.724
Camera settings Exposure time: 8   ISO: 400   F-number: 2.8
Focal length: 50.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 88 cd/m2
Luminance spread 58 cd/m2 (2 standard deviations)
Exposure value –3.25 stops   (aim for –2 to –3)
Exposure spread 0.98 stops
Area used for calculation 0.724 x 0.724
Camera settings Exposure time: 1/500   ISO: 400   F-number: 2.8
Focal length: 50.1 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.