Contrast ratio results for Horizon 2206SW

Black
Contrast ratio	649:1
Monitor model	Horizon 2206SW
Submitted	07 Dec 2008 05:08 CET, by 89.136..
Camera model	Sony DSC-W35
Processing remarks	Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 2: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: Image F-number settings are not the same.
Screen photo	[open image]
Luminance	0.24 cd/m2
Luminance spread	0.08 cd/m2 (2 standard deviations)
Exposure value	–2.78 stops (aim for –2 to –3)
Exposure spread	0.47 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1 ISO: 400 F-number: 2.8 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 1
White
Screen photo	[open image]
Luminance	158 cd/m2
Luminance spread	45 cd/m2 (2 standard deviations)
Exposure value	–2.77 stops (aim for –2 to –3)
Exposure spread	0.42 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/100 ISO: 400 F-number: 7.1 Focal length: 0 mm (35 mm equivalent) Exposure compensation: -0.3

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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.