Note:
• For F5 cameras, only EC-B, EC-E, B, E, J, A, L focusing
screens are usable in Matrix Metering.
• When using the B and E focusing screens in cameras
En
other than those listed above, refer to the columns for
the B and E screens.
14. Lens care
• When the lens is not in use, set the tilt and shift amount
to "0." The lens has many moving parts and can be easily
soiled by dust, dirt or water drip.
• Clean the lens surfaces with a blower brush. To remove
dirt and smudges, use a soft, clean cotton cloth or lens
tissue moistened with ethanol (alcohol) or lens cleaner.
Wipe in a circular motion from center to outer edge,
taking care not to leave traces or touch other parts of the
lens.
• Never use thinner or benzene to clean the lens as this
might damage it, result in a fire, or cause health
problems.
• To protect the front lens element, an NC filter is
recommended at all times. A lens hood also helps protect
the front of the lens.
• When storing the lens in its lens case, attach both front
and rear caps.
• When the lens will not be used for a long time, store it in
a cool, dry place to prevent mold. Also store the lens
away from direct sunlight or chemicals such as camphor
or naphthalene.
• Do not get water on the lens or drop it in water as this
will cause it to rust and malfunction.
• Reinforced plastic is used for certain parts of the lens. To
avoid damage, never leave the lens in an excessively hot
place.
36