First make sure 108mp is off on 3:4 aspect ratio. Then click any of the buttons for zoom or wide angle. Then you have a set of options with 100x at the end. You can pinch to zoom as well to get anything inbetween. You will get better picture qualities on 0.6x, 1x, 3x and 10x and possibly 30x due to the inbetweens of those figures relying party on digital zoom but I can't remember if 30x uses a combination of the 3x and 10x cameras. But beyond 30x I tend not to use unless as the quality is poor BUT apart from moon shots which it seems to work remarkably well on even up to 100x.