Contrast ratio results for Panasonic Viera 42" plasma

Contrast ratio 558:1
Monitor model Panasonic Viera 42" plasma
Submitted 22 Aug 2012 22:20 CEST, by 83.219.*.*
Camera model Canon EOS 550D
Processing remarks

Warning: Image ISO settings are not the same.

Black
Screen photo
Luminance 0.15 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –3.5 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.371 x 0.417
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 26.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 83 cd/m2
Luminance spread 10 cd/m2 (2 standard deviations)
Exposure value –3.38 stops   (aim for –2 to –3)
Exposure spread 0.18 stops
Area used for calculation 0.371 x 0.417
Camera settings Exposure time: 1/256   ISO: 200   F-number: 2.8
Focal length: 26.7 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.