Thanks for the 5N vs. 7 comparison, Michael. Unfortunately, for many of us, using CornerFix isn't a big deal, but we're worried about the corner resolution differences. I was stunned to see how much better my NEX-5N resolved in the corners with my ZM 35/2, when compared to my NEX-5, and I hope the NEX-7 isn't back to the smeary NEX-5 ways.