Actually it can be said that the Nikon D40x is the development of the Nikon D40, the D40 has a 6.1 Megapixel camera, capable of getting 2.5fps the D40, and D40 lowest ISO is ISO 200, also external flash sync speed is 1/200detik whereas D40 D40x has reached 1/500detik. The latter difference is in the power of a larger battery on the Nikon D40x, by spec is 10% stronger than the D40.Officially, at an early stage in conjunction with the launch of packaged D40x kit lens is 18-5mm, but with the development, will likely be packaged with other Nikon products, such as a more telephoto range lens and camera bag and memory (this is optional depending on the place of the seller).