[. . . ] Touching the internal parts of the camera or lens could result in injury. [. . . ] When shooting with back-lighting, do not point the lens at the sun or allow sunlight to pass directly down the lens as this may cause the camera to overheat and possibly cause a fire. â· When the lens will not be used for an extended period of time, attach both front and rear lens caps and store the lens away from direct sunlight. Failure to do so could result in a fire, as the lens may focus sunlight onto a flammable object. Object distance information can be transferred to the camera body when the lens is used with any Nikon model with 3D Matrix Metering capability. â· Autofocus is not possible with Nikon's D5000, D3000, D60 and D40-Series cameras. Should you notice smoke or an unusual smell coming from the camera or lens, remove the battery immediately, taking care to avoid burns. [. . . ] Do not look at the sun through the lens or viewfinder Viewing the sun or other strong light sources Specifications and designs are subject to change without any notice or obligation on the part of the manufacturer. [. . . ]