Contrast ratio results for NEC MultiSync 90GX2

Black
Contrast ratio	110:1
Monitor model	NEC MultiSync 90GX2
Submitted	12 Mar 2014 22:05 CET, by 99.247..
Camera model	Nikon D5100
Processing remarks	Warning: image file 1: automatic white balance can cause inaccuracies. Note: image file 1: suggested exposure time: 0.4 s (Set EV to -0.8) Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 2: automatic white balance can cause inaccuracies. Note: image file 2: suggested exposure time: 1/300 s (Set EV to -0.6)
Screen photo	[open image]
Luminance	1.62 cd/m2
Luminance spread	2.37 cd/m2 (2 standard deviations)
Exposure value	–3.66 stops (aim for –2 to –3)
Exposure spread	2.68 stops
Area used for calculation	0.374 x 0.424
Camera settings	Exposure time: 1/6 ISO: 400 F-number: 4 Focal length: 27 mm (35 mm equivalent) Exposure compensation: -2
White
Screen photo	[open image]
Luminance	179 cd/m2
Luminance spread	62 cd/m2 (2 standard deviations)
Exposure value	–3.94 stops (aim for –2 to –3)
Exposure spread	0.51 stops
Area used for calculation	0.374 x 0.424
Camera settings	Exposure time: 1/800 ISO: 400 F-number: 4 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.