Are you using Olympus or Panasonic body?I'm still on M43 and have no need to move to another system. Just need a nice wide angled lens to complete a decent setup I've put together over a 3 year period
Unless Panasonic has updated it silently, AR coatings of Lumix G 7-14mm are designed for tighter ~415-420nm UV cut filter than what at least some Olympus bodies have.
That was one of the first lenses released after introduction of mirrorless Four Thirds, so guess Panasonic didn't think far ahead.
AR coatings of newer lenses like Leica DG 8-18mm's are fine for Olympus bodies.