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Contrast ratio results for Samsung UA40EH530

Contrast ratio 93:1
Monitor model Samsung UA40EH530
Submitted 25 Sep 2022 14:29 CEST, by 101.188.*.*
Camera model Nikon D800
Processing remarks

Warning: Image ISO settings are not the same.

Black
Screen photo
[open image]
Luminance 2.09 cd/m2
Luminance spread 0.83 cd/m2 (2 standard deviations)
Exposure value –2.01 stops   (aim for –2 to –3)
Exposure spread 0.58 stops
Area used for calculation 0.695 x 0.781
Camera settings Exposure time: 1/80   ISO: 6400   F-number: 2.8
Focal length: 50 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 194 cd/m2
Luminance spread 22 cd/m2 (2 standard deviations)
Exposure value –3.11 stops   (aim for –2 to –3)
Exposure spread 0.16 stops
Area used for calculation 0.695 x 0.781
Camera settings Exposure time: 1/250   ISO: 100   F-number: 2.8
Focal length: 50 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.