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Olympus filed a patent 201237640 in Japan for a new 17mm f/2.8 lens. The current Olympus M.Zuiko Digital 17mm f/2.8 pancake lens ($299.99) was announced on June 16, 2009. The newly patented lens will have 7 elements in 5 groups compared to 6 elements in 4 groups in the current model.