Contrast ratio results

Contrast ratio 631:1
Monitor model
Submitted 28 Aug 2021 21:28 CEST, by 80.186.*.*
Camera model Fujifilm FinePix HS20EXR
Processing remarks


Black
Screen photo
Luminance 0.26 cd/m2
Luminance spread 0.11 cd/m2 (2 standard deviations)
Exposure value –2.42 stops   (aim for –2 to –3)
Exposure spread 0.62 stops
Area used for calculation 0.646 x 0.861
Camera settings Exposure time: 4   ISO: 200   F-number: 3.6
Focal length: 48.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 163 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –2.05 stops   (aim for –2 to –3)
Exposure spread 0.34 stops
Area used for calculation 0.646 x 0.861
Camera settings Exposure time: 1/122   ISO: 200   F-number: 3.6
Focal length: 48.7 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.