Contrast ratio results for LG 32LD450 zoomed

Black
Contrast ratio	652:1
Monitor model	LG 32LD450 zoomed
Submitted	11 Jan 2011 17:58 CET, by 118.99..
Camera model	Sony NEX-5
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. image file 2: Warning: image includes screen edges or something that's not a monitor. Hold the camera close to the screen.
Screen photo	[open image]
Luminance	0.24 cd/m2
Luminance spread	0.3 cd/m2 (2 standard deviations)
Exposure value	–2.16 stops (aim for –2 to –3)
Exposure spread	2.08 stops
Area used for calculation	0.795 x 1
Camera settings	Exposure time: 8 ISO: 200 F-number: 4.5 Focal length: 60 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	158 cd/m2
Luminance spread	73 cd/m2 (2 standard deviations)
Exposure value	–1.72 stops (aim for –2 to –3)
Exposure spread	0.68 stops
Area used for calculation	0.795 x 1
Camera settings	Exposure time: 1/60 ISO: 200 F-number: 4.5 Focal length: 60 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.