There are contradicting rumors about the shape of Huawei Mate 30's camera. A week ago, there was a photo of a glass back showing a circular hole for the camera module. Today, a case has leaked showing a rectangular hole. The latter does line up with these renders in an official patent document for phone cases (the document doesn't explicitly name the Mate 30, however). For a better look at this design, check out these non-official renders. There's not much consistency in the number of cameras either. Some rumors suggest 4 cameras, other say 5. Unfortunately, neither this leaked case...
Source: https://www.gsmarena.com/alleged_huawei_mate_30_case_shows_a_rectangular_camera_not_circular-news-38004.php
