Contrast ratio | 983:1 |
---|---|
Monitor model | |
Submitted | 18 Nov 2020 22:55 CET, by 80.109.*.* |
Camera model | Panasonic DMC-GM1 |
Processing remarks | image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. |
Black | |
Screen photo |
|
Luminance | 0.21 cd/m2 |
Luminance spread | 0.29 cd/m2 (2 standard deviations) |
Exposure value | –5.34 stops (aim for –2 to –3) |
Exposure spread | 2.43 stops |
Area used for calculation | 0.57 x 0.76 |
Camera settings | Exposure time: 1/4 ISO: 320 F-number: 2.8 Focal length: 43 mm (35 mm equivalent) Exposure compensation: 0 |
White | |
Screen photo |
|
Luminance | 204 cd/m2 |
Luminance spread | 207 cd/m2 (2 standard deviations) |
Exposure value | –2.04 stops (aim for –2 to –3) |
Exposure spread | 1.61 stops |
Area used for calculation | 0.57 x 0.76 |
Camera settings | Exposure time: 1/400 ISO: 320 F-number: 2.8 Focal length: 43 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.