(A pointless mental exercise here, I admit - venting off anxiety while I hope for the rumored Oly 12-60 f/2.8-4.0 sealed lens to exist.) Is the 45-150 going to be noticeably sharper than the 45-175? 45-175 MTF chart 45-150 MTF chart I'm no MTF chart expert, but I think this suggests the corners are sharper and contrast is better. Am I reading that right? I like my 45-175 and normally wouldn't think of swapping it out for something so similar, but smaller AND lighter AND sharper is an enticing idea. I am looking forward to some actual reviews.