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Contrast ratio of HP LP2465

Contrast ratio 999:1
Monitor model HP LP2465
Submitted 10 May 2010 10:17 CEST, by 79.77.*.*
Camera model Olympus E-3
Processing remarks

Note: image file 1: suggested exposure time: 2.0 s (Set EV to -0.3)
Note: image file 2: suggested exposure time: 1/490 s (Set EV to -0.6)

Black
Screen photo
[open image]
Luminance 0.23 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –1.19 stops   (aim for –2 to –3)
Exposure spread 0.18 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 5   ISO: 400   F-number: 3.5
Focal length: 28 mm   (35 mm equivalent)
Exposure compensation: 1
White
Screen photo
[open image]
Luminance 229 cd/m2
Luminance spread 26 cd/m2 (2 standard deviations)
Exposure value –0.87 stops   (aim for –2 to –3)
Exposure spread 0.17 stops
Area used for calculation 0.404 x 0.404
Camera settings Exposure time: 1/160   ISO: 400   F-number: 3.5
Focal length: 28 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.