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Contrast ratio results for LG

Contrast ratio 10:1
Monitor model LG
Submitted 02 Mar 2025 15:18 CET, by 76.93.*.*
Camera model samsung SM-N986U1
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 1/38 s (Set EV to +3.7)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 2: Overexposed. Please decrease the shutter time.
Note: image file 2: suggested exposure time: 1/45 s (Set EV to -2.5)
Warning: Image ISO settings are not the same.

Black
Screen photo
[open image]
Luminance 0.58 cd/m2
Luminance spread 0.31 cd/m2 (2 standard deviations)
Exposure value –6.23 stops   (aim for –2 to –3)
Exposure spread 0.79 stops
Area used for calculation 0.322 x 0.489
Camera settings Exposure time: 1/500   ISO: 3200   F-number: 1.8
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 6 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –-0 stops   (aim for –2 to –3)
Exposure spread 0 stops
Area used for calculation 0.327 x 0.465
Camera settings Exposure time: 1/8   ISO: 400   F-number: 1.8
Focal length: 25 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.