Canon EF 24-105/4L IS USM Lens - gradient.

I believe yes

Thats the problem with IS for video, IMO, at longer focal lengths it jitters the frame all over the place.

What do u mean? can you please explain more?

To try and give a stable image the optics of a lens will move slightly to counter-act the movement of your hands...

This is fine for stills as you only need to capture a split second, but on video the movement of the lenses can be seen in the form of the jerking movements.

This is more pronounced on longer lens and less on wider lenses (focal lengths). Of course, IS is more useful in photography on the longer lens to minimise shake.

That's good to know. Thank you

I know the jerky movement issue.
It's indeed because of the IS.
Better switch it off and get a good way of stabilizing the camera.

An L Bracket is the cheapest way.
Or get a small tripod and stabilize it with your body.
Zacuto has more expensive but better stabilizers too.

Search on youtube
Canon 7D Nikon lens adaptor
(don't mind the name, he talks about stabilizing too)
All tutorals of this guy are great.

I'm not sure. I guess I did long lens all the way 105mm. Try to film the ground using long lens and see if you can have the same effect.