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Contrast ratio results for LG C1 48" Oled

Contrast ratio 4.25131e+07:1
Monitor model LG C1 48" Oled
Submitted 26 Oct 2021 19:22 CEST, by 84.253.*.*
Camera model samsung SM-G988B
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 18150.6 s (Set EV to +14.1)
Warning: image file 2: Overexposed. Please decrease the shutter time.

Black
Screen photo
[open image]
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –16.65 stops   (aim for –2 to –3)
Exposure spread 1.01 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1   ISO: 400   F-number: 1.8
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 287 cd/m2
Luminance spread 13 cd/m2 (2 standard deviations)
Exposure value –0.27 stops   (aim for –2 to –3)
Exposure spread 0.07 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1/498   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.