Find some camera models that can take upgraded shots.

Camera is called upgrade, and editing is called variable speed.

Take movies for example. The upgrade means shooting more than 24 frames per second and playing 24 frames per second, resulting in a slow-motion effect.

When the camera is upgraded and played, it is still 24 frames per second. If the editing is slow, it will not reach 24 frames per second, and the picture will be one card at a time.

1874, Jules Jean Sang of France invented the camera. He wound the film on a toothed supply reel.

Under the control of the pendulum mechanism, the film supply tray moves intermittently in the circular film supply box, and at the same time, the pendulum mechanism drives the shutter to rotate. Whenever the film stops, the shutter is opened for exposure. Janssen connected this camera to a telescope, which can take a set of photos of planetary motion at the speed of one per second. Janssen named it a photographic gun, which is the originator of modern movie camera +y6r.