Looking to buy the new Oly 25mm off of ebay from a Japan retailer. Seller says it is the Japan model and further states "This Lens is a Japanese domestic version. There is no functional difference between Japanese and international version." Is there a compatibility problem between say an American market camera body and a lens made for the Japanese market? Don't believe I have ever seen a retailer make such a statement. Always assumed compatibility would not be an issue. Thanks.