Hello!
In modern digital cinema cameras, the distortion caused by rolling shutters is quite annoying in most cases.
As everyone knows, it is natural that the slower the read-out speed of sensor is, the more severe the distortion is, but the read-out speed of high-end cinema cameras is not very public.
At camera new product presentations and seminars, I asked camera product managers directly about the read-out speed,(Sony, Black Magic, Arri) But unfortunately, all the managers of