Where is the main camera of 1+9pro?

1+9pro main camera is on it. According to relevant information, the top main lens of 9pro is supplemented, with super wide-angle lens in the middle, telephoto lens and black-and-white lens below. One plus 9Pro is designed with a rear four-camera module, which is a 48-megapixel main camera+a 50-megapixel super wide-angle lens+a 3.3-fold telephoto lens+a black-and-white lens.