Contrast ratio results for DELL S2216HC

Black
Contrast ratio	66:1 (edge: 31:1)
Monitor model	DELL S2216HC
Submitted	08 Dec 2017 10:06 CET, by 27.62..
Camera model	Nikon D7000
Processing remarks	image file 1: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 1/11 s (Set EV to +1.9) Warning: image file 2: camera was zoomed in too much. image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. Note: image file 2: suggested exposure time: 1/280 s (Set EV to +0.8) Warning: image file 3: camera was zoomed in too much. image file 3: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. Warning: image file 3: Underexposed. Please increase the shutter time. Note: image file 3: suggested exposure time: 1/18 s (Set EV to +2.1) Warning: Image ISO settings are not the same. Warning: Image F-number settings are not the same. Warning: Images were taken with different cameras. Warning: Image focal lengths/zoom levels are not the same.
Screen photo	[open image]
Luminance	20 cd/m2
Luminance spread	97 cd/m2 (2 standard deviations)
Exposure value	–4.41 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.932 x 1
Camera settings	Exposure time: 1/40 ISO: 200 F-number: 5 Focal length: 67 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	1334 cd/m2
Luminance spread	1288 cd/m2 (2 standard deviations)
Exposure value	–1.32 stops (aim for –2 to –3)
Exposure spread	1.52 stops
Area used for calculation	1 x 0.497
Camera settings	Exposure time: 1/125 ISO: 320 F-number: 10 Focal length: 90 mm (35 mm equivalent) Exposure compensation: 2
Black at screen edge
Screen photo	[open image]
Luminance	43 cd/m2
Luminance spread	196 cd/m2 (2 standard deviations)
Exposure value	–4.63 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	1 x 0.5
Camera settings	Exposure time: 1/80 ISO: 200 F-number: 5.6 Focal length: 72 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.