I just noticed the B&H entry for the Pentax 40 mm XS pancake for the K01: Pentax DA 40mm f/2.8 XS Lens 22137 B&H Photo Video $250 and the size of a slice of salami. I'm very impressed with the images I've seen taken with it. Of course, the APS-C body is a brick. The NEX bodies are svelte but the lenses are big enough to make Freud insecure. Why, oh why?