Contrast ratio results for Hannstar HF229

Black
Contrast ratio	1250:1
Monitor model	Hannstar HF229
Submitted	02 Sep 2012 22:32 CEST, by 69.4..
Camera model	Olympus E-30
Processing remarks	Warning: using the flash makes no sense. image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 4.1 s (Set EV to +2.3) Warning: using the flash makes no sense. Warning: image file 2: camera was zoomed in too much. Note: image file 2: suggested exposure time: 1/310 s (Set EV to -1.9)
Screen photo	[open image]
Luminance	0.07 cd/m2
Luminance spread	0.03 cd/m2 (2 standard deviations)
Exposure value	–4.85 stops (aim for –2 to –3)
Exposure spread	0.6 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 0.8 ISO: 1600 F-number: 5.6 Focal length: 76 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	91 cd/m2
Luminance spread	3 cd/m2 (2 standard deviations)
Exposure value	–0.56 stops (aim for –2 to –3)
Exposure spread	0.04 stops
Area used for calculation	1 x 0.967
Camera settings	Exposure time: 1/80 ISO: 1600 F-number: 5.6 Focal length: 76 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.