Contrast ratio results for TV

Contrast ratio 3637:1
Monitor model TV
Submitted 01 Jul 2021 17:31 CEST, by 103.139.*.*
Camera model Sony ILCE-7M3
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 6.5 s (Set EV to +3.7)

Black
Screen photo
Luminance 0.07 cd/m2
Luminance spread 0.11 cd/m2 (2 standard deviations)
Exposure value –6.21 stops   (aim for –2 to –3)
Exposure spread 3.01 stops
Area used for calculation 0.389 x 0.438
Camera settings Exposure time: 0.5   ISO: 800   F-number: 5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 263 cd/m2
Luminance spread 44 cd/m2 (2 standard deviations)
Exposure value –0.7 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.389 x 0.438
Camera settings Exposure time: 1/160   ISO: 800   F-number: 5
Focal length: 28 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.