Contrast ratio of samsung

Black
Contrast ratio	58:1 (edge: 60:1)
Monitor model	samsung
Submitted	14 Dec 2017 14:29 CET, by 77.65..
Camera model	Canon EOS 700D
Processing remarks
Screen photo	[open image]
Luminance	2.07 cd/m2
Luminance spread	3.99 cd/m2 (2 standard deviations)
Exposure value	–2.08 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.396 x 0.445
Camera settings	Exposure time: 0.3 ISO: 400 F-number: 3.5 Focal length: 28.5 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	119 cd/m2
Luminance spread	65 cd/m2 (2 standard deviations)
Exposure value	–3.12 stops (aim for –2 to –3)
Exposure spread	0.8 stops
Area used for calculation	0.396 x 0.445
Camera settings	Exposure time: 1/395 ISO: 400 F-number: 3.5 Focal length: 28.5 mm (35 mm equivalent) Exposure compensation: 0
Black at screen edge
Screen photo	[open image]
Luminance	1.99 cd/m2
Luminance spread	3.95 cd/m2 (2 standard deviations)
Exposure value	–2.4 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.396 x 0.445
Camera settings	Exposure time: 1/4 ISO: 400 F-number: 3.5 Focal length: 28.5 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.