Contrast ratio results for Samsung U24E590

Contrast ratio 683:1
Monitor model Samsung U24E590
Submitted 28 May 2017 07:20 CEST, by 71.193.*.*
Camera model Nikon 1 J5
Processing remarks

Note: image file 1: suggested exposure time: 0.4 s (Set EV to -1.5)
Warning: image file 2: Overexposed. Please decrease the shutter time.

Black
Screen photo
Luminance 0.33 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –1.05 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.681 x 0.765
Camera settings Exposure time: 1   ISO: 400   F-number: 1.8
Focal length: 49 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 228 cd/m2
Luminance spread 11 cd/m2 (2 standard deviations)
Exposure value –0.28 stops   (aim for –2 to –3)
Exposure spread 0.07 stops
Area used for calculation 0.681 x 0.765
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
Focal length: 49 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.