OM System 50-200mm f/2.8 IS Pro Review: Optical Excellence

When it comes to the longer telephoto ranges, even Micro Four Thirds lenses can still be big, and not everyone needs -- or can afford -- the full reach of an OM System 150-400mm f/4.5. OM System has a couple of 40-150mm lenses in various sizes, and they have longer zooms up to 300mm with slow apertures. The time is ripe for something in the middle, and that's where the 50-200mm f/2.8 IS Pro comes in; but it will cost you $3,699.