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I realize scanning bar code with ios abd zbar:ZBarReaderViewController.but when the camera show, the focusing very blurry,always need two second focus to become clear,why this happen?is there some setting that can make it better?

Xoangle
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1 Answers1

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You can play around with flash/torch settings to enable better focusing. Bad/Low light is a big enemy of auto-focus. Setting focus setting to continuous will help with scanning.

Keep in mind the minimum focus distance of the camera, at a certain point it won't focus.

Dima Belov
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