Contrast ratio results for davio

Black
Contrast ratio	1:1
Monitor model	davio
Submitted	28 Dec 2012 07:45 CET, by 79.119..
Camera model	Panasonic DMC-LS5
Processing remarks	Warning: using the flash makes no sense. Warning: image file 1: automatic white balance can cause inaccuracies. image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 1: Overexposed. Please decrease the shutter time. Note: image file 1: suggested exposure time: 1/300 s (Set EV to -2.3) Warning: using the flash makes no sense. Warning: image file 2: automatic white balance can cause inaccuracies. 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: 1/300 s (Set EV to -2.3) Warning: using the flash makes no sense. Warning: image file 3: automatic white balance can cause inaccuracies. image file 3: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 3: Overexposed. Please decrease the shutter time. Note: image file 3: suggested exposure time: 1/300 s (Set EV to -2.3) Warning: image file 3 is too bright to be a dark photo. Maybe you mixed up the files?
Screen photo	[open image]
Luminance	360 cd/m2
Luminance spread	169 cd/m2 (2 standard deviations)
Exposure value	–0.16 stops (aim for –2 to –3)
Exposure spread	0.69 stops
Area used for calculation	0.376 x 0.376
Camera settings	Exposure time: 1/60 ISO: 100 F-number: 2.8 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	360 cd/m2
Luminance spread	169 cd/m2 (2 standard deviations)
Exposure value	–0.16 stops (aim for –2 to –3)
Exposure spread	0.69 stops
Area used for calculation	0.376 x 0.376
Camera settings	Exposure time: 1/60 ISO: 100 F-number: 2.8 Focal length: 26 mm (35 mm equivalent) Exposure compensation: 0
Black at screen edge
Screen photo	[open image]
Luminance	360 cd/m2
Luminance spread	169 cd/m2 (2 standard deviations)
Exposure value	–0.16 stops (aim for –2 to –3)
Exposure spread	0.69 stops
Area used for calculation	0.376 x 0.376
Camera settings	Exposure time: 1/60 ISO: 100 F-number: 2.8 Focal length: 26 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.