Contrast ratio | 841:1 (edge: 768:1) |
---|---|
Monitor model | |
Submitted | 01 Apr 2018 14:09 CEST, by 81.204.*.* |
Camera model | Nikon D5000 |
Processing remarks | Warning: image file 1: Underexposed. Please increase the shutter time. |
Black | |
Screen photo |
|
Luminance | 0.18 cd/m2 |
Luminance spread | 0.03 cd/m2 (2 standard deviations) |
Exposure value | –5.25 stops (aim for –2 to –3) |
Exposure spread | 0.26 stops |
Area used for calculation | 0.721 x 0.815 |
Camera settings | Exposure time: 1/4 ISO: 400 F-number: 2.8 Focal length: 52 mm (35 mm equivalent) Exposure compensation: -2 |
White | |
Screen photo |
|
Luminance | 148 cd/m2 |
Luminance spread | 30 cd/m2 (2 standard deviations) |
Exposure value | –2.18 stops (aim for –2 to –3) |
Exposure spread | 0.3 stops |
Area used for calculation | 0.721 x 0.815 |
Camera settings | Exposure time: 1/400 ISO: 400 F-number: 2.8 Focal length: 52 mm (35 mm equivalent) Exposure compensation: -2 |
Black at screen edge | |
Screen photo |
|
Luminance | 0.19 cd/m2 |
Luminance spread | 0.04 cd/m2 (2 standard deviations) |
Exposure value | –5.12 stops (aim for –2 to –3) |
Exposure spread | 0.33 stops |
Area used for calculation | 0.721 x 0.815 |
Camera settings | Exposure time: 1/4 ISO: 400 F-number: 2.8 Focal length: 52 mm (35 mm equivalent) Exposure compensation: -2 |
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.