Contrast ratio results for samsung syncmaster 2343

Black
Contrast ratio	303:1
Monitor model	samsung syncmaster 2343
Submitted	30 Jan 2010 04:00 CET, by 173.17..
Camera model	Nikon D40
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 4.0 s (Set EV to +1.0)
Screen photo	[open image]
Luminance	0.12 cd/m2
Luminance spread	0.03 cd/m2 (2 standard deviations)
Exposure value	–4.5 stops (aim for –2 to –3)
Exposure spread	0.44 stops
Area used for calculation	0.375 x 0.423
Camera settings	Exposure time: 1 ISO: 400 F-number: 3.5 Focal length: 27 mm (35 mm equivalent) Exposure compensation: -1
White
Screen photo	[open image]
Luminance	35 cd/m2
Luminance spread	26 cd/m2 (2 standard deviations)
Exposure value	–3.22 stops (aim for –2 to –3)
Exposure spread	1.12 stops
Area used for calculation	0.375 x 0.423
Camera settings	Exposure time: 1/125 ISO: 400 F-number: 3.5 Focal length: 27 mm (35 mm equivalent) Exposure compensation: -2

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.