Contrast ratio results

Black
Contrast ratio	1064:1
Monitor model
Submitted	26 Dec 2020 23:58 CET, by 85.127..
Camera model	samsung SM-G960F
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 2: exposure time below 1/500 sec is unreliable. Try increasing the EV compensation. Warning: image file 2: Overexposed. Please decrease the shutter time.
Screen photo	[open image]
Luminance	0.34 cd/m2
Luminance spread	0.04 cd/m2 (2 standard deviations)
Exposure value	–3.5 stops (aim for –2 to –3)
Exposure spread	0.17 stops
Area used for calculation	0.345 x 0.46
Camera settings	Exposure time: 1/8 ISO: 400 F-number: 1.5 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	361 cd/m2
Luminance spread	8 cd/m2 (2 standard deviations)
Exposure value	–0.41 stops (aim for –2 to –3)
Exposure spread	0.03 stops
Area used for calculation	0.345 x 0.46
Camera settings	Exposure time: 1/996 ISO: 400 F-number: 1.5 Focal length: 26 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.