What properties of the Camera are you wanting to convert?

What properties of the "+origin prop" (whatever they are!) do you want to convert?

In generating the suitable JSX file for After Effects, which properties in Poser would you want mapped to settings in After Effects.

It is possible, within the restrictions of AE's notion of 3d; but I doubt anyone has a handy script close nearby.

May I ask. Why do you want to perform this export/import?