Contrast ratio results for æ˜ŽåŸºMW535

Black
Contrast ratio	5.6531e+06:1
Monitor model	æ˜ŽåŸºMW535
Submitted	01 Mar 2024 14:37 CET, by 39.148..
Camera model	Apple iPhone 13
Processing remarks	Warning: image file 1: camera was zoomed in too much. Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 125.9 s (Set EV to +9.5) Warning: image file 2: camera was zoomed in too much. Warning: image file 2: automatic white balance can cause inaccuracies. Warning: image file 2: Overexposed. Please decrease the shutter time. Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0 cd/m2
Luminance spread	0 cd/m2 (2 standard deviations)
Exposure value	–13.38 stops (aim for –2 to –3)
Exposure spread	3.26 stops
Area used for calculation	1 x 0.562
Camera settings	Exposure time: 1/15 ISO: 3200 F-number: 1.6 Focal length: 131 mm (35 mm equivalent) Exposure compensation: -1.4
White
Screen photo	[open image]
Luminance	543 cd/m2
Luminance spread	18 cd/m2 (2 standard deviations)
Exposure value	–0.27 stops (aim for –2 to –3)
Exposure spread	0.05 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/120 ISO: 40 F-number: 1.6 Focal length: 131 mm (35 mm equivalent) Exposure compensation: 0.596

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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.