Contrast ratio results for Westinghouse TXF-47F430S

Contrast ratio 1092:1
Monitor model Westinghouse TXF-47F430S
Submitted 18 Dec 2013 06:15 CET, by 165.166.*.*
Camera model Kodak EASYSHARE C143 Digital Camera
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 5.7 s (Set EV to +5.5)
Note: image file 2: suggested exposure time: 1/190 s (Set EV to -1.6)

Black
Screen photo
Luminance 0.06 cd/m2
Luminance spread 0.02 cd/m2 (2 standard deviations)
Exposure value –8 stops   (aim for –2 to –3)
Exposure spread 0.58 stops
Area used for calculation 0.462 x 0.462
Camera settings Exposure time: 1/8   ISO: 400   F-number: 2.9
Focal length: 32 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 61 cd/m2
Luminance spread 5 cd/m2 (2 standard deviations)
Exposure value –0.9 stops   (aim for –2 to –3)
Exposure spread 0.13 stops
Area used for calculation 0.462 x 0.462
Camera settings Exposure time: 1/64   ISO: 400   F-number: 2.9
Focal length: 32 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.