Contrast ratio results

Contrast ratio 1677:1
Monitor model
Submitted 06 Dec 2021 09:47 CET, by 50.4.*.*
Camera model Fujifilm X-T2
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 1.5 s (Set EV to +2.6)
Warning: image file 2: Overexposed. Please decrease the shutter time.

Black
Screen photo
Luminance 0.05 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –5.07 stops   (aim for –2 to –3)
Exposure spread 1.27 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 1/4   ISO: 400   F-number: 1.4
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 84 cd/m2
Luminance spread 4 cd/m2 (2 standard deviations)
Exposure value –0.35 stops   (aim for –2 to –3)
Exposure spread 0.07 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 1/256   ISO: 400   F-number: 1.4
Focal length: 24 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.