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Contrast ratio of xl2370

Contrast ratio 1264:1
Monitor model xl2370
Submitted 27 Jul 2013 05:20 CEST, by 75.19.*.*
Camera model Canon EOS DIGITAL REBEL XSi
Processing remarks

Note: image file 2: suggested exposure time: 1/200 s (Set EV to -1.1)

Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –3.17 stops   (aim for –2 to –3)
Exposure spread 0.87 stops
Area used for calculation 0.404 x 0.455
Camera settings Exposure time: 4   ISO: 400   F-number: 3.4
Focal length: 29.1 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 86 cd/m2
Luminance spread 15 cd/m2 (2 standard deviations)
Exposure value –1.38 stops   (aim for –2 to –3)
Exposure spread 0.25 stops
Area used for calculation 0.404 x 0.455
Camera settings Exposure time: 1/91   ISO: 400   F-number: 3.4
Focal length: 29.1 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.