Why do movie cameras mostly use super35mm format sensors instead of Quan Huafu specifications?

We know that 35mm is a Quan Huafu photosensitive element, that is, the diagonal length of cmos is 35mm. This size comes from the film size of the film era, and the size of each 135 camera film is so large.

The dimensions and principles mentioned above come from still photography, that is, the photography industry. The problem now is the camera, which is the video industry.

Like the historical development of the photo industry, the cameras used in the video industry have also developed from using film to digital imaging. The camera industry has entered the film era before digital imaging, and the most popular film size is over 35mm, that is, over 35.

The size of super 35 is actually much smaller than that of Quan Huafu, slightly larger than or equal to aps-c frame.

To sum up briefly, these specifications and parameters are actually the technical specifications finally formed under the technological development and changes of the times.