Global shutter

Most cameras use a rolling shutter, reading the sensor line by line from the top down. Anything moving quickly during that read comes out skewed, which is the wobble people call jello, and a flash firing mid-read lights only part of the frame. A global shutter exposes and reads every pixel at the same moment, so both problems disappear.

The trade has always been image quality. Global sensors historically gave up dynamic range and low-light performance, which is part of why Sony's a9 III, released in 2023, was the first full-frame camera to ship one. Rolling shutter stays a non-issue for most creators. It bites on whip pans, drone footage and anything filmed from a moving vehicle.