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Contrast ratio of LG 32UN550

Contrast ratio 576:1
Monitor model LG 32UN550
Submitted 12 Dec 2024 18:38 CET, by 73.146.*.*
Camera model samsung Galaxy S23
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.

Black
Screen photo
[open image]
Luminance 0.18 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –2.52 stops   (aim for –2 to –3)
Exposure spread 0.23 stops
Area used for calculation 0.212 x 0.159
Camera settings Exposure time: 1   ISO: 400   F-number: 2.2
Focal length: 13 mm   (35 mm equivalent)
Exposure compensation: -1.3
White
Screen photo
[open image]
Luminance 104 cd/m2
Luminance spread 38 cd/m2 (2 standard deviations)
Exposure value –1.8 stops   (aim for –2 to –3)
Exposure spread 0.53 stops
Area used for calculation 0.163 x 0.292
Camera settings Exposure time: 1/350   ISO: 400   F-number: 2.2
Focal length: 13 mm   (35 mm equivalent)
Exposure compensation: -0.7

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.