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Contrast ratio results for Optoma HD8300 Cinema1

Contrast ratio 14682:1
Monitor model Optoma HD8300 Cinema1
Submitted 13 Feb 2013 00:09 CET, by 178.172.*.*
Camera model SAMSUNG WB2000
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 89.3 s (Set EV to +3.5)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 2: suggested exposure time: 1/160 s (Set EV to +1.1)

Black
Screen photo
[open image]
Luminance 0 cd/m2
Luminance spread 0 cd/m2 (2 standard deviations)
Exposure value –5.98 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 8   ISO: 200   F-number: 2.4
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 72 cd/m2
Luminance spread 15 cd/m2 (2 standard deviations)
Exposure value –3.59 stops   (aim for –2 to –3)
Exposure spread 0.31 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/350   ISO: 200   F-number: 2.4
Focal length: 24 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.