Contrast ratio results

Black
Contrast ratio	1.63141e+09:1
Monitor model
Submitted	10 Jun 2024 15:56 CEST, by 37.212..
Camera model	Fujifilm X-T20
Processing remarks	Warning: image file 1: camera was zoomed in too much. Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 4613576.2 s (Set EV to +29.3) Warning: image file 2: camera was zoomed in too much. Warning: image file 2: automatic white balance can cause inaccuracies. Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0 cd/m2
Luminance spread	0 cd/m2 (2 standard deviations)
Exposure value	–32.14 stops (aim for –2 to –3)
Exposure spread	4.25 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/181 ISO: 800 F-number: 4 Focal length: 83 mm (35 mm equivalent) Exposure compensation: -0.33
White
Screen photo	[open image]
Luminance	107 cd/m2
Luminance spread	17 cd/m2 (2 standard deviations)
Exposure value	–2.21 stops (aim for –2 to –3)
Exposure spread	0.22 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/181 ISO: 500 F-number: 4 Focal length: 83 mm (35 mm equivalent) Exposure compensation: -0.33

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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.