Contrast ratio results

Black
Contrast ratio	2893:1
Monitor model
Submitted	28 Feb 2019 19:13 CET, by 62.235..
Camera model	Olympus E-M5MarkII
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 29.0 s (Set EV to +4.9) Warning: image file 2: Underexposed. Please increase the shutter time. Note: image file 2: suggested exposure time: 1/100 s (Set EV to +2.0)
Screen photo	[open image]
Luminance	0.02 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–7.36 stops (aim for –2 to –3)
Exposure spread	1.2 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1 ISO: 400 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	46 cd/m2
Luminance spread	11 cd/m2 (2 standard deviations)
Exposure value	–4.5 stops (aim for –2 to –3)
Exposure spread	0.36 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1/400 ISO: 400 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0

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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.