Aside from the dust and weather proofing (and the fact that the Zuiko is designed for the 4/3s system)...is there any difference optically between the Zuiko 7 - 14mm f4.0 lens and Pansonic's version of it (also f4.0) designed for the micro 4/3s system?
There's a price difference for sure. But not ridiculous (according to B&H out of NYC about $300 or so). So I'm guessing the optical quality is pretty close.
So just wondering if there was any DNA crossing when the two optics were developed.