Contrast ratio | 256:1 |
---|---|
Monitor model | Samsung SyncMaster 170n |
Submitted | 24 Apr 2015 20:31 CEST, by 173.176.*.* |
Camera model | Olympus E-PL1 |
Processing remarks | Warning: using the flash makes no sense. |
Black | |
Screen photo |
|
Luminance | 0.1 cd/m2 |
Luminance spread | 0.1 cd/m2 (2 standard deviations) |
Exposure value | –6.72 stops (aim for –2 to –3) |
Exposure spread | 1.54 stops |
Area used for calculation | 1 x 1 |
Camera settings | Exposure time: 0.5 ISO: 500 F-number: 5.5 Focal length: 80 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 25 cd/m2 |
Luminance spread | 10 cd/m2 (2 standard deviations) |
Exposure value | –3.36 stops (aim for –2 to –3) |
Exposure spread | 0.56 stops |
Area used for calculation | 1 x 1 |
Camera settings | Exposure time: 1/50 ISO: 500 F-number: 5.5 Focal length: 80 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.