I'm new to GX7. Sorry if this has been covered, I did search around. I just put my PL 25mm f/1.4 on the camera and I'm shooting indoors in typical household lighting. When I half press for autofocus, I see the image dancing or wobble, like a very slight zoom in and zoom out. It seems that I am getting good focus but I haven't checked images on computer yet. Is this anything to be concerned about? Am I missing a setting or something? I thought it was IBS, but I disabled it and issue is still there. This does not happen with the kit 14-42 or the Lumix 45-175 on GX7 when shooting the same exact scene. Also does not happen with the 25mm on the GH3, so it's something with GX7 and the Panny Leica 25.