honor 10 User Manual page 58

Use Light Graffiti to Create Light Patterns
Light graffiti lets you create patterns or write words by moving a light source in front of the camera.
Find a dark location away from other light sources and ensure that the subject's silhouette is
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not visible. Choose a suitably bright light source of an appropriate color, such as a small torch
or glow stick.
Place your device on a tripod or solid surface so that it does not move during the exposure.
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Open Camera > More > Light graffiti. Hold your Phone steady, and then touch
shooting. A preview of the image is displayed in the viewfinder. Touch
to start
when you are finished.
Camera
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