Contrast ratio of Irbis NB116

Contrast ratio 811:1
Monitor model Irbis NB116
Submitted 01 Oct 2021 19:36 CEST, by 5.142.*.*
Camera model Sony SLT-A55V
Processing remarks


Black
Screen photo
Luminance 0.23 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –2.91 stops   (aim for –2 to –3)
Exposure spread 0.8 stops
Area used for calculation 0.477 x 0.637
Camera settings Exposure time: 2   ISO: 400   F-number: 4
Focal length: 36 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 184 cd/m2
Luminance spread 58 cd/m2 (2 standard deviations)
Exposure value –1.89 stops   (aim for –2 to –3)
Exposure spread 0.46 stops
Area used for calculation 0.477 x 0.637
Camera settings Exposure time: 1/200   ISO: 400   F-number: 4
Focal length: 36 mm   (35 mm equivalent)
Exposure compensation: 0
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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.