■Setting the aperture
Use the camera to adjust the aperture setting.
En | ■ The | |
| • | The |
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| less than 0.6 m (2.0 ft.). |
| • | To prevent vignetting, do not use the lens hood. |
*Vignetting is the darkening of the corners around the image that occurs when the light emitted by the flash is obstructed by the lens hood, or lens barrel, depending on the shooting distance.
■Lens care
•Be careful not to allow the CPU contacts 8 to become dirty or damaged.
•If the lens mount rubber gasket 7is damaged, be sure to visit the nearest
•Clean 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 the center to the outer edge, taking care not to leave traces or touch other parts of the lens.
•Never use organic solvent such as thinner or benzene to clean the lens, as this could cause damage, result in a fire, or cause health problems.
•NC filters are available to protect the front lens element. The lens hood also helps to protect the front of the lens.
•When storing the lens in its flexible lens pouch, attach both the front and rear lens caps.
•When the lens is mounted on a camera, do not pick up or hold the camera and lens by the lens hood.
•When the lens will not be used for an extended period of time, store it in a cool, dry place to prevent mold and rust. Be sure to 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.
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