Contrast ratio results

Contrast ratio 852:1 (edge: 1433:1)
Monitor model
Submitted 13 Aug 2021 10:27 CEST, by 80.186.*.*
Camera model Fujifilm FinePix HS20EXR
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 3.6 s (Set EV to +1.9)
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 6.1 s (Set EV to +2.6)

Black
Screen photo
Luminance 0.14 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –4.35 stops   (aim for –2 to –3)
Exposure spread 1.43 stops
Area used for calculation 0.668 x 0.891
Camera settings Exposure time: 1   ISO: 400   F-number: 3.6
Focal length: 50.4 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 116 cd/m2
Luminance spread 26 cd/m2 (2 standard deviations)
Exposure value –3.32 stops   (aim for –2 to –3)
Exposure spread 0.33 stops
Area used for calculation 0.668 x 0.891
Camera settings Exposure time: 1/416   ISO: 400   F-number: 3.6
Focal length: 50.4 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
Luminance 0.08 cd/m2
Luminance spread 0.07 cd/m2 (2 standard deviations)
Exposure value –5.1 stops   (aim for –2 to –3)
Exposure spread 1.34 stops
Area used for calculation 0.668 x 0.891
Camera settings Exposure time: 1   ISO: 400   F-number: 3.6
Focal length: 50.4 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.