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Olympus Zuiko 12-60mm f/2.8-4.0 Digital ED SWD Lens for Olympus Digital SLR Cameras

Olympus Zuiko 12-60mm f/2.8-4.0 Digital ED SWD Lens for Olympus Digital SLR Cameras

This is an impressive lens, fast, wide, fairly long, and close focus abilities. I also own the 14-54mm F2.8-3.5, which had been my walk around lens until this one arrived. The 12-60mm is even sharper than then 14-54mm, which is not slouch.
The 2mm (4mm equivalent) difference on the wide end is VERY noticeable, especially if you are photographing indoors. The 6mm (12mm equivalent) is also noticeable and useful but not as extreme.