Nikon D200 D200 User's Manual - Page 18

Introduction-First Steps First Steps Attaching a Lens Care should be taken to prevent dust from entering the camera when the lens is removed. 1 After confirming that the camera is off, remove the rear lens cap and camera body cap. 2 Keeping the mounting index on the lens aligned with the mounting index on the camera body, position the lens in the camera's bayonet mount. Being careful not to press the lens-release button, rotate the lens counter-clockwise until it clicks into place. Mounting index Detaching Lenses Be sure the camera is off when removing or exchanging lenses. To remove the lens, press and hold the lens-release button while turning the lens clockwise. Aperture Ring If the lens is equipped with an aperture ring, lock aperture at the minimum setting (highest 8 f/-number). See the lens manual for details.