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Contrast ratio results for Philips

Contrast ratio 264:1
Monitor model Philips
Submitted 17 Aug 2021 00:06 CEST, by 187.57.*.*
Camera model LGE LM-G810
Processing remarks

Warning: image file 1: Overexposed. Please decrease the shutter time.
Note: image file 1: suggested exposure time: 0.7 s (Set EV to +0.2)

Black
Screen photo
[open image]
Luminance 0.17 cd/m2
Luminance spread 0.12 cd/m2 (2 standard deviations)
Exposure value –0.72 stops   (aim for –2 to –3)
Exposure spread 1.06 stops
Area used for calculation 0.425 x 0.319
Camera settings Exposure time: 2.5   ISO: 400   F-number: 1.8
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: 2
White
Screen photo
[open image]
Luminance 44 cd/m2
Luminance spread 12 cd/m2 (2 standard deviations)
Exposure value –2.64 stops   (aim for –2 to –3)
Exposure spread 0.39 stops
Area used for calculation 0.425 x 0.319
Camera settings Exposure time: 1/400   ISO: 400   F-number: 1.8
Focal length: 26 mm   (35 mm equivalent)
Exposure compensation: -2

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.