Contrast ratio results for LG Flatron E2770

Black
Contrast ratio	3:1
Monitor model	LG Flatron E2770
Submitted	05 Mar 2018 18:23 CET, by 79.43..
Camera model	Sony DSC-HX90
Processing remarks	image file 1: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen. 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: 1/110 s (Set EV to -1.1)
Screen photo	[open image]
Luminance	14 cd/m2
Luminance spread	13 cd/m2 (2 standard deviations)
Exposure value	–2.49 stops (aim for –2 to –3)
Exposure spread	1.41 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1/30 ISO: 400 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	49 cd/m2
Luminance spread	49 cd/m2 (2 standard deviations)
Exposure value	–1.42 stops (aim for –2 to –3)
Exposure spread	1.59 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1/50 ISO: 400 F-number: 3.5 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.