Contrast ratio | 38:1 |
---|---|
Monitor model | Benq - gw2760hl |
Submitted | 28 Feb 2019 02:56 CET, by 24.157.*.* |
Camera model | Canon EOS DIGITAL REBEL XT |
Processing remarks | Warning: image file 1: camera was zoomed in too much. |
Black | |
Screen photo |
|
Luminance | 2.8 cd/m2 |
Luminance spread | 2.21 cd/m2 (2 standard deviations) |
Exposure value | –13.23 stops (aim for –2 to –3) |
Exposure spread | 1.2 stops |
Area used for calculation | 1 x 1 |
Camera settings | Exposure time: 1/4000 ISO: 400 F-number: 5.6 Focal length: 85.9 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 105 cd/m2 |
Luminance spread | 8 cd/m2 (2 standard deviations) |
Exposure value | –0.31 stops (aim for –2 to –3) |
Exposure spread | 0.11 stops |
Area used for calculation | 0.39 x 0.439 |
Camera settings | Exposure time: 1/50 ISO: 400 F-number: 3.5 Focal length: 28.1 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.