Contrast ratio results

Contrast ratio 1776:1
Monitor model
Submitted 13 Dec 2018 00:07 CET, by 89.64.*.*
Camera model Sony ILCE-6300
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 6.8 s (Set EV to +1.5)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 2: suggested exposure time: 1/260 s (Set EV to -0.4)

Black
Screen photo
Luminance 0.07 cd/m2
Luminance spread 0.05 cd/m2 (2 standard deviations)
Exposure value –6 stops   (aim for –2 to –3)
Exposure spread 1.11 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 0.6   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: -2
White
Screen photo
Luminance 121 cd/m2
Luminance spread 14 cd/m2 (2 standard deviations)
Exposure value –1.44 stops   (aim for –2 to –3)
Exposure spread 0.17 stops
Area used for calculation 0.333 x 0.376
Camera settings Exposure time: 1/125   ISO: 400   F-number: 3.5
Focal length: 24 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.