I searched the internet but did not find similar discussion. The Oly 12/2 has very good reputation for image quality, but is ridiculously expensive. The Oly 9-18/4-5.6 is said to be nice for a wide zoom, but is still quite expensive. The Pana 14mm + GWC1, is equivalent to 11mm, and costs less that 1/2 of the Oly 12mm. The question is how does the image quality compare to the above? How well does it serve as the poor man's ultra-wide lens?