Hi, I'm finding distant focussing a major dilemma with the 14-45 lens on a GX8. In Auto the focus keeps hunting & in manual it is out of focus when I get near the red marker in the viewfinder. Reading the manual I am led to believe that the red area is for infinity but this not the case when I review photos/video. As I do have to use polarising filters in the glaring tropics I hope that the filters aren't the cause. Could it be a hidden or overlooked setting in the camera ?