Nikon 4920 Camera Lens User Manual


 
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Blank box means not applicable. Since type M screen can be used for both macro-
photography at a 1:1 magnification ratio and for photomicrography, it has
different applications than other screens.
• When using the B and E focusing screens in cameras other than those listed
above, refer to the columns for the B and E screens.
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 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.
8. Standard accessories
• Slip-on front lens cap • Rear lens cap LF-1 • Semi-soft case CL-M3