Contrast ratio results for samsung U28E590DS

Black
Contrast ratio	801:1
Monitor model	samsung U28E590DS
Submitted	06 Jul 2017 01:04 CEST, by 84.25..
Camera model	samsung SM-G935F
Processing remarks	Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 2.3 s (Set EV to +3.2) Warning: image file 2: automatic white balance can cause inaccuracies. Note: image file 2: suggested exposure time: 1/56 s (Set EV to -1.9) Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.02 cd/m2
Luminance spread	0 cd/m2 (2 standard deviations)
Exposure value	–5.7 stops (aim for –2 to –3)
Exposure spread	0.33 stops
Area used for calculation	0.425 x 0.319
Camera settings	Exposure time: 1/4 ISO: 1250 F-number: 1.7 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	12 cd/m2
Luminance spread	2 cd/m2 (2 standard deviations)
Exposure value	–0.6 stops (aim for –2 to –3)
Exposure spread	0.21 stops
Area used for calculation	0.425 x 0.319
Camera settings	Exposure time: 1/15 ISO: 200 F-number: 1.7 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0

{adcode}

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.