Can the lens be enlarged and reduced when taking pictures with ipad4? (zoom in and out)

The question is, is there an ipad4? Is it ipad mini? Digital zoom (magnification) is possible, but the lens will not zoom (physical zoom is impossible). This is the answer to integration. And click on the screen to adjust the metering ~ ~ ~ I hope I can help you. At the bottom of the screen, just drag it by hand.