Banding with the E-M5 and the 20/1.7: A potential work-around

I've done the teardown on the 14 and 20mm. I'm afraid it didn't contribute anything particularly useful to the banding problem.

We did discover the 20mm is really a jack-in-the-box, which is kind of amusing, but otherwise I don't think it was helpful.

http://www.lensrentals.com/blog/2012/10/panasonic-pancake-dissections