Contrast ratio results for S29E790C TEST

Black
Contrast ratio	879:1
Monitor model	S29E790C TEST
Submitted	13 Jun 2015 00:15 CEST, by 89.156..
Camera model	Sony NEX-7
Processing remarks	Note: image file 1: suggested exposure time: 0.7 s (Set EV to +1.2) Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 2: Underexposed. Please increase the shutter time.
Screen photo	[open image]
Luminance	0.09 cd/m2
Luminance spread	0.08 cd/m2 (2 standard deviations)
Exposure value	–3.67 stops (aim for –2 to –3)
Exposure spread	1.39 stops
Area used for calculation	0.358 x 0.477
Camera settings	Exposure time: 0.3 ISO: 3200 F-number: 3.5 Focal length: 27 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	75 cd/m2
Luminance spread	20 cd/m2 (2 standard deviations)
Exposure value	–4.12 stops (aim for –2 to –3)
Exposure spread	0.38 stops
Area used for calculation	0.358 x 0.477
Camera settings	Exposure time: 1/4000 ISO: 3200 F-number: 3.5 Focal length: 27 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.