IS problem with 100-400L

[hashdef]

When shooting in IS mode 1 and panning (even very gently) the image in the viewfinder judders quite badly and continues to do so for up to a second after the camera stops moving. I've tried a friend's identical lens and it doesn't do this, so it looks like mine is faulty.

Anyone else had a similar problem ?

[Scottes]

I've had something like this happen twice. Removing the lens and replacing seemed to fix it for a while, and when I got home I cleaned all the contacts with a pencil eraser. Haven't had it happen since.

[Jim_T]

Nope... I've never seen that behavior on mine..

As Scottes says.. Try cleaning the contacts.. Last November, my lens started causing an error and freezing the camera. Wiping the contacts gently with a microfiber cloth fixed it.. Hasn't been a problem since.

[iwatkins]

.. and you shouldn't pan in mode 1 anyway, switch to mode 2 for panning.

Cheers

Ian

[Chris1le]

I've had this happen also. The whole camera eventually locked up. Got an error message. Can't remember which one. Anyway I just dismounted then remounted. Problem fixed. I think. :? :D

[Nic]

Like Ian said - use mode 2 for panning. It never happend to my lens!!

[Chris1le]

My lens freaked out when going from vertical to horizontal. If you expect to pan, yeah, use 2. Many times though while framing a bird the bird will take off then you are panning in 1 mode. :lol:

[robertwgross]

My lens freaked out when going from vertical to horizontal. If you expect to pan, yeah, use 2. Many times though while framing a bird the bird will take off then you are panning in 1 mode. :lol:

Can't you train the bird to recognize when you are in Mode 1 or 2?

(never mind)

---Bob Gross---