I got my EM-5 at the beginning of the year, and I love it. I recently sold the 25mm f/1.4 (and have a 17 f/2.8 and 12-50mm listed for sale) with the intention of picking up a Panasonic 12-35 f/2.8. I was tentatively planning to visit a friend in DC for a week, then head up to NYC in June, and the new lens would be a great walking-around lens. Well, plans got dashed for at least the DC part of the trip. Friend took a new job and is starting that week. Anyway... looking around at some of the usual domestic vendors, the lens can be had for around $1150. Checking eBay, there are a few sellers with lots of feedback and very high ratings that ship out of either Hong Kong or Japan that are selling for just under $1000. I'm heavily leaning toward buying from one of those sellers. Shipping time doesn't bother me. I know the warranty coverage may be different since it wouldn't have technically been bought in the US... but are there any other real caveats about buying from a seller in Hong Kong or Japan?