Was guilty of some bitching in a previous post about the purple flaring of the Panasonic 7-14mm on the E-M5. I was pissed off to the extent that I looked on eBay for an indication of a sale price.
But on reflection, it is still the best current M43 mega-wide lens, producing cracking images at 7mm when the light source is not shining at the lens, like this and this:
Kyoto station roof