Contrast ratio results

Black
Contrast ratio	1325:1
Monitor model
Submitted	17 Feb 2008 00:19 CET, by 83.150..
Camera model	Fujifilm FinePix Z2
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 4.2 s (Set EV to +3.1) Warning: image file 2: Overexposed. Please decrease the shutter time. Note: image file 2: suggested exposure time: 1/310 s (Set EV to -1.2)
Screen photo	[open image]
Luminance	0.11 cd/m2
Luminance spread	0.02 cd/m2 (2 standard deviations)
Exposure value	–6.58 stops (aim for –2 to –3)
Exposure spread	0.29 stops
Area used for calculation	0.52 x 0.52
Camera settings	Exposure time: 1/4 ISO: 400 F-number: 3.5 Focal length: 36.2 mm (35 mm equivalent) Exposure compensation: -1
White
Screen photo	[open image]
Luminance	146 cd/m2
Luminance spread	7 cd/m2 (2 standard deviations)
Exposure value	–0.31 stops (aim for –2 to –3)
Exposure spread	0.07 stops
Area used for calculation	0.52 x 0.52
Camera settings	Exposure time: 1/69 ISO: 400 F-number: 3.5 Focal length: 36.2 mm (35 mm equivalent) Exposure compensation: 1

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.