First let me say that I always read your reviews prior to getting new equipment. Thank you for these excellent reviews! As for this lens, I am contemplating the purchase of the Olympus OM-D EM-5 as my "travel" kit, and am most interested in image sharpness and detail in prints up to about 16x20. So far I've read that the Oly 75mm is among the sharpest optics for m4/3. I wonder how this Oly macro stands up in terms of sharpness. As a "Macro" lens, one would think that sharpness and resolution is a primary characteristic.