Pinch to zoom out from 1 to 0.5 get crash

Hi, i am using iPhone 12 pro max to test the triple camera case, but it get crash [AVCaptureDevice setVideoZoomFactor:] The passed videoZoomFactor 0.500000 is out-of-range [1, activeFormat.videoMaxZoomFactor]'. I searched and get the result videozoomfactor start range is 1.0, then how to i use 0.5.Please response.

Pinch to zoom out from 1 to 0.5 get crash
 
 
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