Well, maybe it's not new news for many - but as a new GX7 owner, it is for me! It seems particularly bad on the 45/1.8 and the 35-100. I'm really glad this thing has an electronic shutter. I think I'll enable this by default. Here's an example - both images with the 45mm @ f1.8 and at 1/100s. Left image is the best of three shots with the electronic shutter. Right image is the best of three shots with the mechanical shutter.