Wide lens of choice?

My opinion is that the Panasonic Lumix 7-14mm is the best zoom for extreme wide. Indeed a superb lens.

But the Olympus 9-18mm is also a good one and a bit cheaper.

--
Simplicity is the ultimate sophistication.
Pure logic is the ruin of the spirit.
Imagination is more important than knowledge.
God is the tangential point between zero and infinity.
Aleo Photo Site