Contrast ratio results

Contrast ratio 1219:1
Monitor model
Submitted 21 Jun 2020 21:51 CEST, by 83.58.*.*
Camera model Sony ILCE-6000
Processing remarks

Note: image file 1: suggested exposure time: 1.8 s (Set EV to -1.5)

Black
Screen photo
Luminance 0.25 cd/m2
Luminance spread 0.13 cd/m2 (2 standard deviations)
Exposure value –1.04 stops   (aim for –2 to –3)
Exposure spread 0.73 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 5   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 311 cd/m2
Luminance spread 40 cd/m2 (2 standard deviations)
Exposure value –1.75 stops   (aim for –2 to –3)
Exposure spread 0.18 stops
Area used for calculation 0.333 x 0.375
Camera settings Exposure time: 1/400   ISO: 400   F-number: 3.5
Focal length: 24 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.