Contrast ratio | Test results | LCD test | Small-screen tests | Lagom home

Contrast ratio results for Panasonic Lumix DMC-ZS3

Contrast ratio 1778:1 (edge: 2142:1)
Monitor model Panasonic Lumix DMC-ZS3
Submitted 02 Dec 2009 20:13 CET, by 97.119.*.*
Camera model Panasonic DMC-ZS3
Processing remarks

Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 4.4 s (Set EV to +2.1)
Warning: image file 3: Underexposed. Please increase the shutter time.
Note: image file 3: suggested exposure time: 5.3 s (Set EV to +2.4)

Black
Screen photo
[open image]
Luminance 0.09 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –4.64 stops   (aim for –2 to –3)
Exposure spread 0.61 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1   ISO: 400   F-number: 3.3
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 166 cd/m2
Luminance spread 12 cd/m2 (2 standard deviations)
Exposure value –1.81 stops   (aim for –2 to –3)
Exposure spread 0.1 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1/250   ISO: 400   F-number: 3.3
Focal length: 25 mm   (35 mm equivalent)
Exposure compensation: 0
Black at screen edge
Screen photo
[open image]
Luminance 0.08 cd/m2
Luminance spread 0.03 cd/m2 (2 standard deviations)
Exposure value –4.91 stops   (aim for –2 to –3)
Exposure spread 0.63 stops
Area used for calculation 0.361 x 0.361
Camera settings Exposure time: 1   ISO: 400   F-number: 3.3
Focal length: 25 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.