Contrast ratio results for Huion Kamvas Pro 16 Premium

Black
Contrast ratio	1223:1
Monitor model	Huion Kamvas Pro 16 Premium
Submitted	01 May 2020 18:10 CEST, by 85.144..
Camera model	Sony NEX-5
Processing remarks	Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 3.1 s (Set EV to +2.4) Note: image file 2: suggested exposure time: 1/390 s (Set EV to -1.3)
Screen photo	[open image]
Luminance	0.15 cd/m2
Luminance spread	0.09 cd/m2 (2 standard deviations)
Exposure value	–4.87 stops (aim for –2 to –3)
Exposure spread	0.88 stops
Area used for calculation	0.333 x 0.376
Camera settings	Exposure time: 0.6 ISO: 400 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	182 cd/m2
Luminance spread	27 cd/m2 (2 standard deviations)
Exposure value	–1.2 stops (aim for –2 to –3)
Exposure spread	0.22 stops
Area used for calculation	0.333 x 0.376
Camera settings	Exposure time: 1/160 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.