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Contrast ratio of Samsung 40C655

Contrast ratio 5353:1
Monitor model Samsung 40C655
Submitted 11 Nov 2010 09:43 CET, by 84.250.*.*
Camera model CASIO COMPUTER CO.LTD EX-Z750
Processing remarks


Black
Screen photo
[open image]
Luminance 0.04 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –2.37 stops   (aim for –2 to –3)
Exposure spread 0.32 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 30   ISO: 100   F-number: 2.8
Focal length: 38 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 231 cd/m2
Luminance spread 33 cd/m2 (2 standard deviations)
Exposure value –2.86 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 1/250   ISO: 100   F-number: 2.8
Focal length: 38 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.