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Contrast ratio results for Olympue E30

Contrast ratio 1768:1 (edge: 1824:1)
Monitor model Olympue E30
Submitted 29 Mar 2011 19:53 CEST, by 86.144.*.*
Camera model Olympus E-30
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 6.8 s (Set EV to +2.4)
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 7.0 s (Set EV to +3.5)

Black
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –4.89 stops   (aim for –2 to –3)
Exposure spread 0.49 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1.3   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 120 cd/m2
Luminance spread 17 cd/m2 (2 standard deviations)
Exposure value –2.12 stops   (aim for –2 to –3)
Exposure spread 0.21 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1/200   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.07 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –6.05 stops   (aim for –2 to –3)
Exposure spread 0.51 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 0.6   ISO: 400   F-number: 3.5
Focal length: 28 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.