Just got this lens, seems like a very good one. Extremely sharp for a zoom and good macro capability, goes 1:1 (or very close) with the matching SP 2X flat field converter. What I like especially is the continuous focus from macro all the way to infinity. No special macro settings, just keep turning the focus ring...which makes it much more useful for framing. I'm still learning the capabilities of it, since have only had it for about a week or two (@May 1, 2014).