Hi, I was a happy owner of a Panasonic GX80, until I bought the (in many ways) great Pana 20 mm 1.7. I had heard about this lens' issues with banding on oly bodies, but I heard this didn't happen on Panasonic bodies.. well, it happened to me yesterday. It's more noticeable at 1600 iso and over, but it definitely happens before that. Thing is, in order to rule possible camera fault, I had a look at my previous photos, taken with the 12-32 and.. surprise. The same banded noise pattern can bee seen with other lenses, only less pronounced. The 20 mm actually made me notice something I wasn't seeing before! Here's some examples (sorry about the uninteresting and scruffy subject, it's a junk storage): Panasonic 20 mm 1.7 @ 800 iso: Panasonic 20 mm 1.7 @ 1600 iso: Panasonic 20 mm 1.7 @ 3200 iso: Panasonic 12-32 @ 1600 iso Panasonic 12-32 @ 3200 iso: All taken at 0 exposure and straight out of camera. Do I have a faulty unit? Will Panasonic acknowledge it? Thanks in advance.