Contrast ratio of Samsung S23C450B (TN)

Contrast ratio 694:1
Monitor model Samsung S23C450B (TN)
Submitted 29 Nov 2013 12:31 CET, by 212.37.*.*
Camera model Nikon COOLPIX P50
Processing remarks


Black
Screen photo
Luminance 0.17 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –2.44 stops   (aim for –2 to –3)
Exposure spread 0.74 stops
Area used for calculation 0.448 x 0.448
Camera settings Exposure time: 8   ISO: 100   F-number: 2.9
Focal length: 31 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 115 cd/m2
Luminance spread 13 cd/m2 (2 standard deviations)
Exposure value –1.91 stops   (aim for –2 to –3)
Exposure spread 0.16 stops
Area used for calculation 0.448 x 0.448
Camera settings Exposure time: 1/60   ISO: 100   F-number: 2.9
Focal length: 31 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.