Nikon AF-S OX Zoom-Nikkor ED 12-24mm f/4G IF Руководство по эксплуатации - Страница 4
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Type of lens:
Specifications
Specifications and designs are subject to change without any notice
or
obligation on the part of the
manufacturer.
Using bayonet hood H8-23
Attaching the hood
Align the lens hood attachment index (r) on the hood with the lens hood mounting index on the lens,
and turn the hood counterclockwise (as viewed from the camera side) until it click stops.
(Fig. A)
• Make sure that the lens hood mounting index aligns with the lens hood setting index
(-0).
• If the lens hood is not correctly attached, vignetting can occur.
• To facilitate attachment or removal of the hood, hold it by its base rather than its outer edge.
• To store the lens hood, attach it in the reverse position.
Detaching the hood
While holding its base rather than its outer edge, turn the hood clockwise as viewed from the camera side
to detach.
Lens care
• Be careful not to soil or damage the CPU contacts.
• Clean the lens surfaces with ablower brush. To remove dirt and smudges, use asoft, clean cotton cloth
or lens tissue moistened with ethanol (alcohol) or lens cleaner. Wipe in acircular 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 afire, or cause health
problems.
• To protect the front lens element, an NC filter is recommended at all times. Alens 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 along time, store it in acool, 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.
Standard accessories
• 77mm snap-on front lens cap LC-77 • Bayonet hood HB-23 • Rear lens cap LF-1
Optional accessories
• 77mm 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, KRing and
Bellows focusing attachment.
Other accessories may not be suitable for use with this lens. For details, carefully read your accessories
instruction manual.
Focal length:
Maximum aperture:
Lens construction:
Picture angle:
Focal length scale:
Distance information:
Zoom control:
Focusing:
G-type AF OX Zoom-Nikkor lens having built-in CPU and Nikon bayonet
mount [Specially designed for use with the Nikon Digital SLR cameras (Nikon
OX format))
12mm-24mm
114
11 elements in 7groups (3 asphericallens and 2ED lens elements)
99°- 61°
12,15,18,20,24mm
Output to camera body
Manually via separate zoom ring
Nikon Internal Focusing (IF) system (utilizing an internal Silent Wave Motor);
manually via separate focus ring
Shooting distance scale: Graduated in meters and feet from O.3m (1 ft.) to infinity
(00)
Closest focus distance: 0.3m (1
ft.) at all zoom settings
Diaphragm:
Fully automatic
Exposure measurement: Via full-aperture method
Attachment size:
77mm (P
=
0.75mm)
Dimensions:
Approx. 82.5mm dia. x90mm extension from the camera's lens mount flange
Weight:
Approx. 465g (164 oz.)