I'm taking my trusty EP3 on a overseas trip, currently I only own the Panny 20mm f1.7 which I use 98% of the time and a Sigma 60mm. But I think I would like something more versatile, I like the Oly 12-40mm because of its f2.8 aperture, and it would probably suit me for the whole trip. The only concern is would it be overkill on a EP3, weight, size and dare I say too much quality. Not too sure what else is out there. Thanks Peter.