Tips on CLOSE-UP Photography Lens Care

•When using the optional Extension Ring PK-13, Bellows Focusing Attachment PB-6, or other Nikon equipment to obtain a repro- duction ratio of more than 1:2, better opti- cal performance will be obtained by stopping down the lens to f/4 or a smaller aperture setting.

•Always keep the lens surfaces clean, as dust or smudges can interfere with image sharp- ness. Use a blower brush to remove dust, never cloth or facial tissue. Stubborn smudges should be removed with photo- graphic lens tissue moistened with lens cleaner or pure ethyl alcohol. Wipe the lens using a circular motion starting at the center and moving slowly to the outside. Ether should not be used, as it may cause hard-to- remove streaks especially on multicoated lenses.

•To protect the lens surface from dirt or dam- age, the use of an L37C filter is recommended at all times. The lens hood also helps to pro- tect the lens.

•Keep the lens cap in place whenever the lens is not in use.

•Attach both the front and rear caps when the lens is stored separately.

•To ensure proper fit of the lens when stored in the leather lens case, set the lens' focusing ring to the infinity (°°) setting.