7. Lens care
• Clean the lens surfaces with a blower brush. To remove dirt and
smudges, use a soft, clean cotton cloth or lens tissue moistened with
En
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.
• When the lens is not in use, attach the lens cap to protect the front
lens element.
• 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.
• Rapid changes in temperature may cause damaging condensation
inside and outside the lens. Before taking the lens from a warm to a
cold environment or vice versa, place it in a bag or plastic case to slow
the change in temperature.
8. Standard accessories
• Slip-on front lens cap • Rear lens cap • Semi-soft case CL-M3
20