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Contrast ratio of dell s2716dg

Contrast ratio 639:1
Monitor model dell s2716dg
Submitted 17 Oct 2018 23:19 CEST, by 95.5.*.*
Camera model samsung SM-G950F
Processing remarks

Note: image file 1: suggested exposure time: 0.4 s (Set EV to -1.5)

Black
Screen photo
[open image]
Luminance 0.3 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –1.04 stops   (aim for –2 to –3)
Exposure spread 0.26 stops
Area used for calculation 0.425 x 0.319
Camera settings Exposure time: 1   ISO: 400   F-number: 1.7
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 192 cd/m2
Luminance spread 15 cd/m2 (2 standard deviations)
Exposure value –0.68 stops   (aim for –2 to –3)
Exposure spread 0.11 stops
Area used for calculation 0.425 x 0.319
Camera settings Exposure time: 1/498   ISO: 400   F-number: 1.7
Focal length: 26 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.