Contrast ratio results for QNIX QX2710

Black
Contrast ratio	4421:1
Monitor model	QNIX QX2710
Submitted	17 Sep 2014 22:00 CEST, by 93.200..
Camera model	SAMSUNG SM-N9005
Processing remarks	Warning: image file 1: automatic white balance can cause inaccuracies. image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 1.2 s (Set EV to +4.4) Warning: image file 2: automatic white balance can cause inaccuracies. Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.06 cd/m2
Luminance spread	0.03 cd/m2 (2 standard deviations)
Exposure value	–6.9 stops (aim for –2 to –3)
Exposure spread	0.67 stops
Area used for calculation	0.411 x 0.548
Camera settings	Exposure time: 1/17 ISO: 1000 F-number: 2.2 Focal length: 31 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	260 cd/m2
Luminance spread	15 cd/m2 (2 standard deviations)
Exposure value	–1.92 stops (aim for –2 to –3)
Exposure spread	0.08 stops
Area used for calculation	0.411 x 0.548
Camera settings	Exposure time: 1/119 ISO: 50 F-number: 2.2 Focal length: 31 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.