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Contrast ratio results for Dell u2415

Contrast ratio 1036:1
Monitor model Dell u2415
Submitted 21 Apr 2018 15:05 CEST, by 80.57.*.*
Camera model Panasonic DMC-G7
Processing remarks

Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation.

Black
Screen photo
[open image]
Luminance 0.27 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –2.27 stops   (aim for –2 to –3)
Exposure spread 0.37 stops
Area used for calculation 0.709 x 0.795
Camera settings Exposure time: 1.3   ISO: 400   F-number: 2.8
Focal length: 51 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 278 cd/m2
Luminance spread 17 cd/m2 (2 standard deviations)
Exposure value –1.95 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.709 x 0.795
Camera settings Exposure time: 1/640   ISO: 400   F-number: 2.8
Focal length: 51 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.