Contrast ratio of NEC PA271w

Contrast ratio 244:1
Monitor model NEC PA271w
Submitted 30 Dec 2011 01:54 CET, by 98.240.*.*
Camera model Panasonic DMC-ZS9
Processing remarks


Black
Screen photo
Luminance 0.25 cd/m2
Luminance spread 0.09 cd/m2 (2 standard deviations)
Exposure value –2.22 stops   (aim for –2 to –3)
Exposure spread 0.52 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1   ISO: 800   F-number: 3.3
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 61 cd/m2
Luminance spread 6 cd/m2 (2 standard deviations)
Exposure value –2.93 stops   (aim for –2 to –3)
Exposure spread 0.14 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/400   ISO: 800   F-number: 3.3
Focal length: 24 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.