The script will set up a simple camera rig in your composition with rotation and position controls located in one Control Null. The camera rig also works really well with Videocopilot's Sure Target.

This collection of scripts is used to transfer 3D motion to and from After Effects, Maya, Nuke, SynthEyes and Electric Image.

This script is used to create a 3d cube. You can later replace the different sides and spin the null around for easy animation.

This is a Pixel Bender plugin that allows for quick and easy lens distortion correction or effects including chromatic aberration.

A tool that lets you know which part of your picture is too bright or too dark by pointing the bad pixels directly on your footage. Similar to the way zebra-stripping works on digital cameras.

This one is meant as a alternative to the motion-tile method for creating camera shake.

After Effects Camera Mapping Tutorial 2D to 3D

Docucam is an After Effects preset loosely based on the excellent Docucam in CS Tools for C4D. The preset simulates handheld camera moves and more

It shouldn't matter what rotation methods and parenting the original camera has, as it translates all of that into a free camera with only position, rotation, and zoom parameters.