Contrast ratio results for sva 22

Black
Contrast ratio	1:1
Monitor model	sva 22
Submitted	06 Feb 2015 07:18 CET, by 50.43..
Camera model	Nikon D5100
Processing remarks	Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 1/210 s (Set EV to +0.3) Note: image file 2: suggested exposure time: 1/180 s (Set EV to +0.2)
Screen photo	[open image]
Luminance	83 cd/m2
Luminance spread	10 cd/m2 (2 standard deviations)
Exposure value	–0.66 stops (aim for –2 to –3)
Exposure spread	0.17 stops
Area used for calculation	0.374 x 0.424
Camera settings	Exposure time: 1/50 ISO: 400 F-number: 3.5 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 2
White
Screen photo	[open image]
Luminance	95 cd/m2
Luminance spread	20 cd/m2 (2 standard deviations)
Exposure value	–4.78 stops (aim for –2 to –3)
Exposure spread	0.3 stops
Area used for calculation	0.374 x 0.424
Camera settings	Exposure time: 1/1000 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.