Contrast ratio results for AcerView76C CRT monitor

Black
Contrast ratio	1423:1
Monitor model	AcerView76C CRT monitor
Submitted	01 Jan 2010 03:54 CET, by 99.253..
Camera model	Canon PowerShot SX120 IS
Processing remarks	image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 2: Overexposed. Please decrease the shutter time. Note: image file 2: suggested exposure time: 1/39 s (Set EV to -2.3) Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.04 cd/m2
Luminance spread	0.02 cd/m2 (2 standard deviations)
Exposure value	–3.35 stops (aim for –2 to –3)
Exposure spread	0.62 stops
Area used for calculation	0.508 x 0.508
Camera settings	Exposure time: 1 ISO: 1 F-number: 2.8 Focal length: 35.2 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	58 cd/m2
Luminance spread	3 cd/m2 (2 standard deviations)
Exposure value	–0.2 stops (aim for –2 to –3)
Exposure spread	0.07 stops
Area used for calculation	0.508 x 0.508
Camera settings	Exposure time: 1/8 ISO: 80 F-number: 2.8 Focal length: 35.2 mm (35 mm equivalent) Exposure compensation: 0

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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.