The 12-35 mm for landscape.

Right. Fair enough. I'm somewhat embarrassed to admit that I bought my first 12-35 from Panacam in Hong Kong and sent it back because I was aghast at the problem. I was sure I had gotten a defective copy. They were very good about a refund and reimbursement for shipping, but I felt quite foolish when I found out that the problem is in all these lenses, not just individual copies. I then found out about LR4's capability to resolve this problem and bought another because I find the 12-50 unacceptable.

So yes, if Olympus puts out a mft version of their 12-60 that is just as good as the 4/3 version, I'll snap it up in a heartbeat. Until then, I'm sufficiently satisfied with the Panasonic + LR4.

--
Frank