Contrast ratio results for Philips 220SW8

Contrast ratio 2351:1
Monitor model Philips 220SW8
Submitted 10 Apr 2009 18:14 CEST, by 77.71.*.*
Camera model Pentax K100D
Processing remarks

Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.

Black
Screen photo
Luminance 0.05 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –2.78 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 0.6   ISO: 800   F-number: 1.4
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: 1
White
Screen photo
Luminance 119 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –2.49 stops   (aim for –2 to –3)
Exposure spread 0.46 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/3200   ISO: 800   F-number: 1.4
Focal length: 75 mm   (35 mm equivalent)
Exposure compensation: 1

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.