Contrast ratio results

Black
Contrast ratio	3803:1
Monitor model
Submitted	29 Nov 2018 15:01 CET, by 109.199..
Camera model	Olympus E-420
Processing remarks	Warning: using the flash makes no sense. Warning: image file 1: camera was zoomed in too much. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 24.6 s (Set EV to +4.9) Warning: using the flash makes no sense. Warning: image file 2: camera was zoomed in too much. Note: image file 2: suggested exposure time: 1/150 s (Set EV to -3.9)
Screen photo	[open image]
Luminance	0.05 cd/m2
Luminance spread	0.07 cd/m2 (2 standard deviations)
Exposure value	–9.45 stops (aim for –2 to –3)
Exposure spread	2.55 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/5 ISO: 400 F-number: 5.6 Focal length: 84.1 mm (35 mm equivalent) Exposure compensation: -2
White
Screen photo	[open image]
Luminance	183 cd/m2
Luminance spread	24 cd/m2 (2 standard deviations)
Exposure value	–0.55 stops (aim for –2 to –3)
Exposure spread	0.19 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/40 ISO: 400 F-number: 5.6 Focal length: 84.1 mm (35 mm equivalent) Exposure compensation: -2

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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.