Contrast ratio results for LG OLED42C4RLA

Black
Contrast ratio	1943:1
Monitor model	LG OLED42C4RLA
Submitted	16 Oct 2024 22:57 CEST, by 176.106..
Camera model	SANYO Electric Co.Ltd. C6
Processing remarks	Warning: image file 1: automatic white balance can cause inaccuracies. image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time. Warning: image file 2: automatic white balance can cause inaccuracies. Note: image file 2: suggested exposure time: 1/51 s (Set EV to -1.3) Warning: Image ISO settings are not the same.
Screen photo	[open image]
Luminance	0.05 cd/m2
Luminance spread	0.01 cd/m2 (2 standard deviations)
Exposure value	–2.56 stops (aim for –2 to –3)
Exposure spread	0.26 stops
Area used for calculation	0.592 x 0.592
Camera settings	Exposure time: 2.7 ISO: 1350 F-number: 3.5 Focal length: 41 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	95 cd/m2
Luminance spread	3 cd/m2 (2 standard deviations)
Exposure value	–1.22 stops (aim for –2 to –3)
Exposure spread	0.05 stops
Area used for calculation	0.592 x 0.592
Camera settings	Exposure time: 1/21 ISO: 100 F-number: 3.5 Focal length: 41 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.