Contrast ratio results for W1954S

Black
Contrast ratio	20240:1
Monitor model	W1954S
Submitted	27 Nov 2019 00:46 CET, by 78.174..
Camera model	HUAWEI FIG-LX1
Processing remarks	Warning: image file 1: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 2: automatic white balance can cause inaccuracies.
Screen photo	[open image]
Luminance	16842 cd/m2
Luminance spread	15471 cd/m2 (2 standard deviations)
Exposure value	–14.91 stops (aim for –2 to –3)
Exposure spread	1.43 stops
Area used for calculation	0.376 x 0.376
Camera settings	Exposure time: 1/99996336 ISO: 800 F-number: 2.2 Focal length: 26 mm (35 mm equivalent) Exposure compensation: -1
White
Screen photo	[open image]
Luminance	3.40885e+08 cd/m2
Luminance spread	8.08253e+07 cd/m2 (2 standard deviations)
Exposure value	–0.6 stops (aim for –2 to –3)
Exposure spread	0.34 stops
Area used for calculation	0.376 x 0.376
Camera settings	Exposure time: 1/99996336 ISO: 800 F-number: 2.2 Focal length: 26 mm (35 mm equivalent) Exposure compensation: -1

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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.