Autofocus is supported only with AF-S and AF-I CPU lenses, which are equipped with an autofocus motor
The camera can power-up in a near-instantaneous 0.18 seconds and is able to capture images instantly, with virtually none of the shutter delay typically associated with point-and-shoot digital cameras. It can shoot up to 3 pictures per second, non-stop for up to 100 shots. The D40x also features superb power efficiency, allowing up to 520 images per charge.
The D40x's automated, scene-optimized Digital Vari-Program modes allow users to capture nearly any type of scene without needing to understand the fine points of photography or fumble with camera settings. It includes eight preset modes, including a Flash Off mode. As users gain experience with the camera, the camera offers advanced controls such as Aperture-priority and Shutter-priority modes that offer greater creative control over the look and feel of their pictures.
The large and bright 2.5-inch color LCD screen on the back of the D40x displays everything from menu options to pictures in playback mode. The visually-intuitive information display system presents camera and shooting information in a user-friendly, graphical way. A built-in help menu with Assist Images can help you select appropriate settings for many camera features by displaying a sample image illustrating the effect and potential use of the setting in question.
When you are done shooting, the Retouch menu offers exclusive in-camera image editing features that provide greater creativity without the need for a computer. Included in the Retouch menu is Nikon's D-Lighting, which brightens dark pictures and an automated Red-eye correction feature. Other creative features include Image Overlay, Small Picture, Monochrome (Black-and-white, Sepia, and Cyanotype) and Filter Effects (Skylight, Warm filter, Color balance).
After you have taken your pictures and made all of the desired adjustments, printing them could not be easier, since the camera is PictBridge compatible. Just connect the camera to a PictBridge compliant printer and print your favorite images - without the need for a computer.
DX-Nikkor lenses are engineered and optimized for use on Nikon DX-format D-SLRs and are designed to cover the smaller image area of the DX sensor. When a DX lens is mounted on an FX-format Nikon D-SLR, the camera's DX-Crop Mode is automatically engaged, introducing a 1.5x magnification (cropping) factor.