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Contrast ratio of Samsung 2243SN

Contrast ratio 548:1 (edge: 398:1)
Monitor model Samsung 2243SN
Submitted 06 Jan 2010 19:03 CET, by 81.182.*.*
Camera model Canon EOS 50D
Processing remarks

Note: image file 1: suggested exposure time: 2.6 s (Set EV to +1.4)

Black
Screen photo
[open image]
Luminance 0.18 cd/m2
Luminance spread 0.17 cd/m2 (2 standard deviations)
Exposure value –3.9 stops   (aim for –2 to –3)
Exposure spread 1.49 stops
Area used for calculation 0.617 x 0.694
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 44.4 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 96 cd/m2
Luminance spread 46 cd/m2 (2 standard deviations)
Exposure value –3.45 stops   (aim for –2 to –3)
Exposure spread 0.71 stops
Area used for calculation 0.617 x 0.694
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 44.4 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.24 cd/m2
Luminance spread 0.3 cd/m2 (2 standard deviations)
Exposure value –3.44 stops   (aim for –2 to –3)
Exposure spread 2.06 stops
Area used for calculation 0.617 x 0.694
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 44.4 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.