How to calculate the zoom factor of the lens?

William Wong

The zoom factor is "current_focal_length / minimum_focal_length".

It should be noted that the minimum focal length of the H20 series aircraft is the focal length of the wide-angle lens.

So the zoom factor of the zoom camera is

"focal_length_of_the zoom_camera / minimum_focal_length_of_the _wide-angle lens".

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