[Cin] Camera - Proiector

[Andrea paz]

I was reading the new manual and I realized I didn't understand the
camera and the projector. I thought that the box of the camera
remained fixed to the dimensions of the window of the composer and
moved the image below (pan e zoom). Now it behaves exactly like the
projector, with the image that remains tied to the box and moves and
zooms in on it. See the video:
https://streamable.com/6rm97
It's been a long time since I've used camera automation, so I can't
tell when behavior has changed.
Can anyone explain to me how the camera and projector work?