I know to change camera.But is there a mean that the scene is filmed by the camera1 during a time , and after :the scene is filmed by camera2 IN the ANIMATION ?

Yes, run the built-in Camera Changer script (Scripts->Animation). Then rename your cameras with names like 10,30 where the numbers are the frames on which that camera will become active.

thanks a lot for your answers.
But , tell me: I own the 2.41 version and I can’t see the menu Script->camera : where is it ? Or which shortcut have I to key?

Scripts >> Animation >> Camera Changer.


at the bottom, the is a button: Scripts but no Camera: is your fonction built-in or is it a python script ?

It’s a Python script and the Menu I pointed to you’ll find in the Scripts Window.