Contrast ratio results

Black
Contrast ratio	417:1
Monitor model
Submitted	09 Jun 2008 03:20 CEST, by 24.207..
Camera model	Olympus u-miniDStylus V
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Screen photo	[open image]
Luminance	0.11 cd/m2
Luminance spread	0.05 cd/m2 (2 standard deviations)
Exposure value	–2.9 stops (aim for –2 to –3)
Exposure spread	0.63 stops
Area used for calculation	0.52 x 0.52
Camera settings	Exposure time: 3.2 ISO: 400 F-number: 3.5 Focal length: 36 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	46 cd/m2
Luminance spread	11 cd/m2 (2 standard deviations)
Exposure value	–3.19 stops (aim for –2 to –3)
Exposure spread	0.33 stops
Area used for calculation	0.52 x 0.52
Camera settings	Exposure time: 1/160 ISO: 400 F-number: 3.5 Focal length: 36 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.