Contrast ratio | Test results | LCD test | Small-screen tests | Lagom home

Contrast ratio of BM273GW

Contrast ratio 700:1
Monitor model BM273GW
Submitted 24 Jul 2019 04:50 CEST, by 187.35.*.*
Camera model Panasonic DMC-GX80
Processing remarks


Black
Screen photo
[open image]
Luminance 0.28 cd/m2
Luminance spread 0.04 cd/m2 (2 standard deviations)
Exposure value –3.22 stops   (aim for –2 to –3)
Exposure spread 0.2 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1   ISO: 400   F-number: 3.5
Focal length: 24 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 197 cd/m2
Luminance spread 24 cd/m2 (2 standard deviations)
Exposure value –2.09 stops   (aim for –2 to –3)
Exposure spread 0.18 stops
Area used for calculation 0.347 x 0.347
Camera settings Exposure time: 1/320   ISO: 400   F-number: 3.5
Focal length: 24 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.