Issue with concentric rings on E-M1 Mark II (edited title)

Started Mar 19, 2017 | Discussions thread
Danielvr Veteran Member • Posts: 4,582
But what could possibly cause this?

With concentric rings, you'd think the problem is optical, i.e. caused by a lens or filter. But you're seeing it with a wide variety of lenses and I'm sure you didn't put a circular polarisation filter on each.
I've seen 'natural' rings in overprocessed photos of the Moon's halo, and in photos of pulsed laser beams. None of that applies here.
But it has got to come from somewhere..

Did you take all these shots with IBIS on?  And if so, what happens with it off?

 Danielvr's gear list:Danielvr's gear list
Olympus E-M1 Olympus Zuiko Digital ED 12-60mm 1:2.8-4.0 SWD Olympus Zuiko Digital ED 50-200mm 1:2.8-3.5 SWD Carl Zeiss Planar T* 1,4/50 Panasonic 20mm F1.7 II +2 more
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