Contrast ratio of acer ed347ckr

Contrast ratio 1927:1
Monitor model acer ed347ckr
Submitted 05 Mar 2023 06:47 CET, by 104.182.*.*
Camera model Canon EOS REBEL T5
Processing remarks


Black
Screen photo
Luminance 0.17 cd/m2
Luminance spread 0.16 cd/m2 (2 standard deviations)
Exposure value –3.31 stops   (aim for –2 to –3)
Exposure spread 1.49 stops
Area used for calculation 0.524 x 0.589
Camera settings Exposure time: 1   ISO: 400   F-number: 2.8
Focal length: 37.7 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 325 cd/m2
Luminance spread 85 cd/m2 (2 standard deviations)
Exposure value –1.03 stops   (aim for –2 to –3)
Exposure spread 0.38 stops
Area used for calculation 0.524 x 0.589
Camera settings Exposure time: 1/395   ISO: 400   F-number: 2.8
Focal length: 37.7 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.