Contrast ratio results for Macbook Pro 16

Contrast ratio 17185:1
Monitor model Macbook Pro 16
Submitted 23 Sep 2021 01:49 CEST, by 188.27.*.*
Camera model RICOH IMAGING COMPANY LTD. RICOH GR III
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 23.6 s (Set EV to +6.6)

Black
Screen photo
Luminance 0.01 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –9.06 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.389 x 0.437
Camera settings Exposure time: 1/4   ISO: 400   F-number: 2.8
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 216 cd/m2
Luminance spread 65 cd/m2 (2 standard deviations)
Exposure value –1.63 stops   (aim for –2 to –3)
Exposure spread 0.43 stops
Area used for calculation 0.389 x 0.437
Camera settings Exposure time: 1/400   ISO: 400   F-number: 2.8
Focal length: 28 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.