Nikon DX AF-S Nikkor 18-55mm 1:3.5-5.6 G II ED Lens with a Sigma Case.

Optics look really good.

An ideal companion for Nikon's newest, smallest and most affordably-priced D40 digital SLR, the 18-55mm II Zoom-Nikkor lens will be included with D40 digital SLR kits. 

The new AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G ED II has been specially developed to provide a compact DX lens equipped with Nikon's compact SWM (Silent Wave Motor) that offers fast, quiet and smooth autofocus performance. 

Further ensuring exceptional image quality, the AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G ED II features an ED glass element, minimizing chromatic aberration, and a hybrid aspherical lens element to reduce astigmatism and other forms of distortion while ensuring high resolution and contrast. The external lens design has also been improved for smoother zoom operability.