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Contrast ratio results for Acer VG240Y Pbiip 17% FL=4.4mm f/2

Contrast ratio 1117:1 (edge: 1753:1)
Monitor model Acer VG240Y Pbiip 17% FL=4.4mm f/2
Submitted 02 Dec 2020 09:30 CET, by 73.85.*.*
Camera model Sony G8441
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 3: could not determine angle of view; assuming 38 mm lens (35 mm equivalent).
Note: image file 3: suggested exposure time: 2.3 s (Set EV to +5.2)

Black
Screen photo
[open image]
Luminance 0.11 cd/m2
Luminance spread 0.08 cd/m2 (2 standard deviations)
Exposure value –3.02 stops   (aim for –2 to –3)
Exposure spread 1.09 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1   ISO: 400   F-number: 2
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 118 cd/m2
Luminance spread 29 cd/m2 (2 standard deviations)
Exposure value –1.86 stops   (aim for –2 to –3)
Exposure spread 0.35 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1/498   ISO: 400   F-number: 2
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.06 cd/m2 (2 standard deviations)
Exposure value –3.67 stops   (aim for –2 to –3)
Exposure spread 1.47 stops
Area used for calculation 0.528 x 0.528
Camera settings Exposure time: 1   ISO: 400   F-number: 2
Focal length: 0 mm   (35 mm equivalent)
Exposure compensation: 4

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.