Much you can not write in such a review so. I bought this Deckelset because at the NEX-6 kit no back cover for the 16-50mm lens and no camera cover were included. Sure, one has usually eh a lens on it, but just in case, or simply for reasons of transportation, but it is sometimes more practical to have the camera individually. Therefore, these two cover and what should I say large, they fit perfectly. About Optics is debatable, but not at this price ;-)