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• Moreover, three ED (Extra-low Dispersion) lens elements ensure that images are sharp and clear from center to edges and virtually free of color fringing, regardless of the focal length setting. Also, by utilizing a 7-bladed diaphragm that produces a nearly circular aperture, out-of-focus images in front of or behind the subject are rendered as pleasing blurs. *1 Sold exclusively in the USA. *2 Sold exclusively in USA and Canada. *3 This distance changes slightly depending on a focal length setting. Check the focus indicator in the viewfinder of cameras so equipped before releasing the shutter. Setting the aperture Because this lens does not have an aperture ring, you must set the aperture on the camera body. Focusing, zooming and depth of field With Nikon autofocus cameras (except the F3AF, F-601/N6006, F-501/N2020), first turn the zoom ring until the desired composition is framed in the viewfinder before performing autofocus. If your camera (F5, F100, F80- Series/N80-Series, F65-Series/N65-Series) has an electronic depth of field preview (stop-down) function, depth of field can be observed while looking through the camera viewfinder. Note on manual focus Be sure to decide the desired composition before performing manual focus in the viewfinder. Focusing is possible at any focal length, but is easier at longer focal length because the image is larger and the depth of field shallower. Using the focus limit switch (Fig. 2) In the autofocus or manual focus mode, depending on the shooting distance, you can use this switch to limit the range of focus and reduce focusing time. Zoom lock switch (Fig. 2) Use the zoom lock switch to lock the zoom ring at 28mm so that the lens does not extend accidentally while carrying the camera. To lock, set the zoom ring to 28mm, and slide the switch to the “LOCK” position. Usable cameras and available exposure modes There may be some restrictions for available exposure modes. Refer to your camera’s instruction manual for details. Taking flash pictures with cameras having built-in flash Check focal length and shooting distance before taking pictures to prevent vignetting since the flash light from the flash may be obstructed by the lens barrel. Recommended focusing screens Various interchangeable focusing screens are available for certain Nikon SLR cameras to suit any type of lens or picture-taking situation. Those recommended for use with this lens are listed in the table. . : Excellent focusing . : Not available. Blank box means not applicable. Since type M screen can be used for both macrophotography at a 1:1 magnification ratio and for photomicrography, it has different applications than other screens. When using the B/B2/B3, E/E2/E3, and K/K2/K3 focusing screens in cameras other than those listed above, refer to the columns for the B, E and K screens. Variable aperture Zooming the lens from 28mm to 200mm decreases the maximum aperture approx. 1 1/3 f/stops. However, there is no need to adjust the aperture, because the camera automatically compensates for this. When taking pictures using a built-in or separate exposure meter, or taking flash photographs in the TTL or non-TTL auto flash mode, use the aperture displayed on the camera. Attaching bayonet hood HB-30 Align the index ( ) on the hood with the lens hood mounting index on the lens, and turn the hood counterclockwise (as viewed from the camera) until it click stops at the index ( ) (Fig. 1). To facilitate attachment or removal of the hood, hold it by its base rather than its outer edge. To store the lens hood, you can attach it in the reverse position. Lens care • Be careful not to soil or damage the CPU contacts. • Clean the lens surface 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. • Never use thinner or benzene to clean the lens as this might damage the lens, result in a fire, or cause health problems. • When storing the lens in the 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 some parts of the lens. To avoid damage, never leave the lens in an excessively hot place. Standard accessories • 62mm snap-on front lens cap LC-62 • Bayonet hood HB-30 • Rear lens cap LF-1 Optional accessories • 62mm screw-in filters • Flexible lens pouch CL-S2 Incompatible accessories • Teleconverters (all models) • Auto Ring BR-4 and all models of Auto Extension Ring PK, K Ring and Bellows focusing attachment. • Other accessories may not be suitable for use with this lens. For details, carefully read your accessories instruct...