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

Started Mar 19, 2017 | Discussions thread
Adrian Harris
Adrian Harris Veteran Member • Posts: 4,632
Re: But what could possibly cause this?

Danielvr wrote:

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.

My thoughts exactly, however it has just occurred to me that if the sensor or AA filter is too reflective, these rings could also happen due to light being 're-bounced' off of the rear glass elements.

I have seen this type of optical occurrence when I tried a front mounted wide angle converter lens a few years ago - before I could afford a 9-18.

Best wishes Astrtripper, it looks as if you may have uncovered quite a gremlin !

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