Contrast ratio results for Philips 246E

Black
Contrast ratio	675:1
Monitor model	Philips 246E
Submitted	30 Dec 2019 04:25 CET, by 147.253..
Camera model	Google Pixel 3a
Processing remarks	Warning: image file 1: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 2: could not determine angle of view; assuming 38 mm lens (35 mm equivalent). Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.27 cd/m2
Luminance spread	0.25 cd/m2 (2 standard deviations)
Exposure value	–2.27 stops (aim for –2 to –3)
Exposure spread	1.43 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/30 ISO: 6400 F-number: 1.8 Focal length: 0 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	181 cd/m2
Luminance spread	28 cd/m2 (2 standard deviations)
Exposure value	–2.94 stops (aim for –2 to –3)
Exposure spread	0.22 stops
Area used for calculation	0.528 x 0.528
Camera settings	Exposure time: 1/7996 ISO: 1600 F-number: 1.8 Focal length: 0 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.