[Rover]

Well, what do you expect... they're using all sorts of nebulous talk and pseudo-information to promote their junk. Why anybody would even look at their products is beyond me when the Canon 100/2.8 L IS Macro - an ultrasharp macro lens with the same basic stats, AF, IS and weathersealing - is half the price, and even the Sony 90/2.8 G Macro - hailed as one of the sharpest lenses in existence - is only $300ish more. And then, vaseline covered filters are almost free...