Contrast ratio results for lg w2240 flatron

Black
Contrast ratio	367:1
Monitor model	lg w2240 flatron
Submitted	18 Aug 2014 12:41 CEST, by 193.231..
Camera model	Nikon D700
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 0.9 s (Set EV to +3.2) Note: image file 2: suggested exposure time: 1/400 s (Set EV to -5.3) 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 is too bright to be a dark photo. Maybe you mixed up the files?
Screen photo	[open image]
Luminance	0.32 cd/m2
Luminance spread	0.31 cd/m2 (2 standard deviations)
Exposure value	–9.71 stops (aim for –2 to –3)
Exposure spread	1.5 stops
Area used for calculation	0.694 x 0.782
Camera settings	Exposure time: 1/160 ISO: 400 F-number: 2.8 Focal length: 50 mm (35 mm equivalent) Exposure compensation: -4
White
Screen photo	[open image]
Luminance	118 cd/m2
Luminance spread	11 cd/m2 (2 standard deviations)
Exposure value	–1.18 stops (aim for –2 to –3)
Exposure spread	0.14 stops
Area used for calculation	0.694 x 0.783
Camera settings	Exposure time: 1/160 ISO: 400 F-number: 2.8 Focal length: 50 mm (35 mm equivalent) Exposure compensation: -4
Black at screen edge
Screen photo	[open image]
Luminance	64 cd/m2
Luminance spread	124 cd/m2 (2 standard deviations)
Exposure value	–2.06 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	0.694 x 0.783
Camera settings	Exposure time: 1/160 ISO: 400 F-number: 2.8 Focal length: 50 mm (35 mm equivalent) Exposure compensation: -4

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.