Contrast ratio results

Black
Contrast ratio	5.74622e+06:1
Monitor model
Submitted	10 Aug 2020 23:45 CEST, by 89.12..
Camera model	Sony NEX-5N
Processing remarks	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: 1241930.6 s (Set EV to +15.3) Warning: image file 2: camera was zoomed in too much. Note: image file 2: suggested exposure time: 1.7 s (Set EV to +1.2) 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	–17.84 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 30 ISO: 800 F-number: 5.6 Focal length: 82 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	2.74 cd/m2
Luminance spread	0.27 cd/m2 (2 standard deviations)
Exposure value	–0.7 stops (aim for –2 to –3)
Exposure spread	0.14 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 6 ISO: 100 F-number: 5.6 Focal length: 82 mm (35 mm equivalent) Exposure compensation: 3

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.