stereoscopic camera-rig


here i have questions to these camera-rigs.
I attach them.
It is “untitled7.3.2.blend” and “untitled7.3.blend”.
When i rotate the main camera, the two other cameras flip ore doesn’t move.
I think that is not right; they should do the same as the main camera.

Does someone finde the mistake?
Many thanks for answers


untitled7.3.blend (295 KB)untitled7.3.2.blend (295 KB)