Contrast ratio results for U2311H

Black
Contrast ratio	855:1
Monitor model	U2311H
Submitted	01 Aug 2013 06:46 CEST, by 67.81..
Camera model	Olympus XZ-2
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 6.6 s (Set EV to +2.7) image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Screen photo	[open image]
Luminance	0.05 cd/m2
Luminance spread	0.05 cd/m2 (2 standard deviations)
Exposure value	–5.21 stops (aim for –2 to –3)
Exposure spread	1.74 stops
Area used for calculation	0.404 x 0.404
Camera settings	Exposure time: 1 ISO: 400 F-number: 2.8 Focal length: 28 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	39 cd/m2
Luminance spread	9 cd/m2 (2 standard deviations)
Exposure value	–2.8 stops (aim for –2 to –3)
Exposure spread	0.35 stops
Area used for calculation	0.404 x 0.404
Camera settings	Exposure time: 1/160 ISO: 400 F-number: 2.8 Focal length: 28 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.