Contrast ratio | 824:1 (edge: 817:1) |
---|---|
Monitor model | DELL 2209WA |
Submitted | 07 Feb 2014 12:04 CET, by 115.192.*.* |
Camera model | Fujifilm FinePix F200EXR |
Processing remarks | Warning: image file 1: Underexposed. Please increase the shutter time. |
Black | |
Screen photo |
|
Luminance | 0.11 cd/m2 |
Luminance spread | 0.11 cd/m2 (2 standard deviations) |
Exposure value | –4.37 stops (aim for –2 to –3) |
Exposure spread | 1.68 stops |
Area used for calculation | 0.402 x 0.536 |
Camera settings | Exposure time: 1 ISO: 400 F-number: 3.2 Focal length: 30.3 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 87 cd/m2 |
Luminance spread | 15 cd/m2 (2 standard deviations) |
Exposure value | –3.39 stops (aim for –2 to –3) |
Exposure spread | 0.25 stops |
Area used for calculation | 0.402 x 0.536 |
Camera settings | Exposure time: 1/416 ISO: 400 F-number: 3.2 Focal length: 30.3 mm (35 mm equivalent) Exposure compensation: 0 |
Black at screen edge | |
Screen photo |
|
Luminance | 0.11 cd/m2 |
Luminance spread | 0.09 cd/m2 (2 standard deviations) |
Exposure value | –4.36 stops (aim for –2 to –3) |
Exposure spread | 1.36 stops |
Area used for calculation | 0.402 x 0.536 |
Camera settings | Exposure time: 1 ISO: 400 F-number: 3.2 Focal length: 30.3 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.