Contrast ratio results for PN50B650

Contrast ratio 3402:1
Monitor model PN50B650
Submitted 11 Jan 2010 07:06 CET, by 98.30.*.*
Camera model Olympus E-420
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 21.9 s (Set EV to +4.5)
Note: image file 2: suggested exposure time: 1/160 s (Set EV to +1.4)

Black
Screen photo
Luminance 0.02 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –6.95 stops   (aim for –2 to –3)
Exposure spread 0.4 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 72 cd/m2
Luminance spread 14 cd/m2 (2 standard deviations)
Exposure value –3.87 stops   (aim for –2 to –3)
Exposure spread 0.28 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 28 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.