Steadycam feeling

[logicalnot]

A steadycam movement is all about balance. If the guy move to fast in one direction, the camera rotate a little bit in the opposite direction and then reach the balance point again.
I wish to be abble to copy /paste some expressions so when I move my camera in the 3D space while changing the position data, the target point will follow the same movement but with a delay and a smooth move while reaching the final point.
I guess you have to deal with position'speed, rotation, and orientation all together.

(By the way, here is a great way to build your own steady for 14$.)

[logicalnot]

2 years later, I found the answer that appear to be 1 year old.
viewtopic.php?p=1733#1733

Patience is a vertue