Nikon D3X D3X User's Manual - Page 63

Attach a Lens Care should be taken to prevent dust from entering the camera when the lens is removed. 1 Remove the rear lens cap and the camera body cap. After confirming that the camera is off, remove the rear lens s cap from the lens and remove the camera body cap. 2 Attach the lens. Keeping the mounting mark on the lens aligned with the mounting mark on the camera body, position the lens in the camera's bayonet mount. Being careful not to press the lensrelease button, rotate the lens counter-clockwise until it clicks into place. Mounting index If the lens is equipped with an A-M or M/A-M switch, select A (autofocus) or M/ A (autofocus with manual priority). 37