Contrast ratio results for Dell S2417DG

Black
Contrast ratio	32619:1
Monitor model	Dell S2417DG
Submitted	17 Oct 2018 21:19 CEST, by 109.67..
Camera model	Nikon COOLPIX P610
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 203.0 s (Set EV to +16.3) Note: image file 2: suggested exposure time: 1/160 s (Set EV to +1.3)
Screen photo	[open image]
Luminance	0 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–18.81 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1/400 ISO: 400 F-number: 3.3 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	66 cd/m2
Luminance spread	16 cd/m2 (2 standard deviations)
Exposure value	–3.82 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: 3.3 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0

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.