Contrast ratio results

Black
Contrast ratio	351:1
Monitor model
Submitted	25 Nov 2014 13:20 CET, by 123.193..
Camera model	Nikon D800
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: Overexposed. Please decrease the shutter time. Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen.
Screen photo	[open image]
Luminance	0.45 cd/m2
Luminance spread	1.1 cd/m2 (2 standard deviations)
Exposure value	–2.21 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.972 x 1
Camera settings	Exposure time: 0.8 ISO: 400 F-number: 2.8 Focal length: 70 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	159 cd/m2
Luminance spread	418 cd/m2 (2 standard deviations)
Exposure value	–3.08 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.972 x 1
Camera settings	Exposure time: 1/800 ISO: 400 F-number: 2.8 Focal length: 70 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.