Contrast ratio results

Black
Contrast ratio	1448:1
Monitor model
Submitted	28 Sep 2023 15:58 CEST, by 88.234..
Camera model	Fujifilm X-T30
Processing remarks	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: 3.4 s (Set EV to +10.4) Warning: image file 2: automatic white balance can cause inaccuracies.
Screen photo	[open image]
Luminance	0.11 cd/m2
Luminance spread	0.06 cd/m2 (2 standard deviations)
Exposure value	–12.93 stops (aim for –2 to –3)
Exposure spread	0.78 stops
Area used for calculation	0.318 x 0.425
Camera settings	Exposure time: 1/407 ISO: 500 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	158 cd/m2
Luminance spread	30 cd/m2 (2 standard deviations)
Exposure value	–2.43 stops (aim for –2 to –3)
Exposure spread	0.28 stops
Area used for calculation	0.347 x 0.347
Camera settings	Exposure time: 1/407 ISO: 500 F-number: 3.5 Focal length: 24 mm (35 mm equivalent) Exposure compensation: 0

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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.