Difference between Pentax 645z and Canon 5dsr

Canon 5ds and Pentax 645z, the former image sensor is Quan Huafu (36mm×24mm) and the latter is a larger medium format image sensor (43.8mm×32.8mm), both of which belong to high-end SLR; The former has 50.6 million pixels and the latter has 5 1.4 million pixels; Canon's 5ds focus is 6 1 point (4 1 cross focus), and Pentax's 645z focus has 27 focus points (including 25 cross focus points in the center). The sensitivity of Canon 5ds ISO 100-6400 can be extended to L (equivalent to ISO 50), H (equivalent to ISO 12800) and Pentax 645Z ISO100-204800; Continuous shooting speed: Canon 5ds has a maximum of about 5 frames per second, and Pentax 645z has a maximum of about 3 frames per second; High-definition videos are all 1080p, and they are all designed without low-pass filter (Canon 5dr with low-pass filter); Canon's 5Ds image processor is dual 6 generations. Compared with the two models, Pentax 645z has the advantages of medium format, high sensitivity, stronger editing ability, higher end and more professionalism. However, the advantages of Canon 5ds are lighter, faster focusing and continuous shooting, and photographers who don't pursue large format prefer Canon 5ds.