Contrast ratio results for Samsung 943BWX

Black
Contrast ratio	838:1
Monitor model	Samsung 943BWX
Submitted	22 Aug 2010 17:26 CEST, by 189.110..
Camera model	Hewlett-Packard HP DSC CB350
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 2.9 s (Set EV to +1.5) Note: image file 2: suggested exposure time: 1/290 s (Set EV to -1.5)
Screen photo	[open image]
Luminance	0.24 cd/m2
Luminance spread	0.18 cd/m2 (2 standard deviations)
Exposure value	–4.03 stops (aim for –2 to –3)
Exposure spread	1.16 stops
Area used for calculation	0.549 x 0.549
Camera settings	Exposure time: 1 ISO: 200 F-number: 3 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	197 cd/m2
Luminance spread	23 cd/m2 (2 standard deviations)
Exposure value	–0.96 stops (aim for –2 to –3)
Exposure spread	0.17 stops
Area used for calculation	0.549 x 0.549
Camera settings	Exposure time: 1/100 ISO: 200 F-number: 3 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 0

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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.