12-35mm Lumix ASPH for video -- strange jitter / OIS issue when mounted on a tripod

John W Moon wrote:

Anyone else experience this issue?

I encountered a problem with my Panasonic 12-35mm/F2.8 ASPH X lens. I'm using this primarily for video.

When mounted on a GH2 or GH3 and placed on a tripod, even with Power Image Stabilization OFF, the image frequently shimmers. There's a lateral movement in the image. This happens more frequently when the camera is angled downward. The camera is mounted on a Sachtler FSB8 head and Gitzo legs. It's sturdy and totally locked down, and there is no movement near the camera to cause camera shake.

It's as if the image stabilization is on or the lens motors are moving, when obviously they shouldn't be. When the IS switch on the lens is set in the "off" position, the camera correctly reports that image stabilization is off.

Here's a sample:

https://vimeo.com/59358100