The D40 is the least expensive, an most compact member of Nikon's entry-level digital SLR range, announced November 16, 2006. Compared to its predecessor, the D50, the D40 has fewer features and a lower price: US$500 ESP as of April 2008 with the 18-55mm G-II kit lens,, positioning it as an entry-level model compared to the D80. The D40x (released March 6, 2007) has a 10 megapixel maximum resolution, up from 6 megapixels of the D40. The D40 and D40x (along with the D60) are notable in being the first Nikon DSLRs that will only autofocus using F-Mount lenses with internal focus motors such as AF-S and AF-I