Contrast ratio results for Dell U2412M

Black
Contrast ratio	1061:1
Monitor model	Dell U2412M
Submitted	27 Dec 2011 16:42 CET, by 81.163..
Camera model	Nikon D7000
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Note: image file 1: suggested exposure time: 0.4 s (Set EV to +1.4) Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 2: Underexposed. Please increase the shutter time.
Screen photo	[open image]
Luminance	0.34 cd/m2
Luminance spread	0.48 cd/m2 (2 standard deviations)
Exposure value	–3.9 stops (aim for –2 to –3)
Exposure spread	2.47 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/6 ISO: 400 F-number: 2 Focal length: 75 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	364 cd/m2
Luminance spread	452 cd/m2 (2 standard deviations)
Exposure value	–4.23 stops (aim for –2 to –3)
Exposure spread	2.1 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/8000 ISO: 400 F-number: 2 Focal length: 75 mm (35 mm equivalent) Exposure compensation: 0

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.