Contrast ratio results for Philips 46PFL9705H

Contrast ratio 74894:1
Monitor model Philips 46PFL9705H
Submitted 15 Jan 2020 19:37 CET, by 83.25.*.*
Camera model Canon EOS 500D
Processing remarks

Warning: image file 1: camera was zoomed in too much.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 4320.6 s (Set EV to +7.1)
Warning: image file 2: camera was zoomed in too much.
Warning: image file 2: Underexposed. Please increase the shutter time.
Note: image file 2: suggested exposure time: 1/17 s (Set EV to +4.5)

Black
Screen photo
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –9.58 stops   (aim for –2 to –3)
Exposure spread 0.85 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 32   ISO: 400   F-number: 5.7
Focal length: 138 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 21 cd/m2
Luminance spread 9 cd/m2 (2 standard deviations)
Exposure value –7.01 stops   (aim for –2 to –3)
Exposure spread 0.61 stops
Area used for calculation 1 x 1
Camera settings Exposure time: 1/395   ISO: 400   F-number: 5.7
Focal length: 138 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.