Nikon 17-35mm-f-28D-ED-IF-AF-S-Zoom-Nikkor - Manual (Page 12)

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Nomenclature
1Focal length scale
2Focal length scale index line
3Distance index line
4Distance scale
5Hood mounting index
6Focus ring
7Focus mode switch
8Aperture index/Mounting index
9Minimum aperture lock lever !Aperture scale
"Aperture-direct-readout scale
#Minimum aperture signal post
(EE servo coupling post)
$Aperture indexing post
%CPU contacts
&Meter coupling ridge
(Aperture ring
)Zoom ring
Introduction
The AF-S Zoom-Nikkor ED 17-35mm f/2.8D IF employs a Silent Wave Motor inside
the lens to drive the focusing mechanism, thus the “S” designation. As a result,
autofocusing is smooth, silent, and almost instantaneous. In addition, this lens
features internal focusing (IF), so there is no change in the overall length of the lens
from infinity to its closest focusing distance of 0.28m (0.9 ft.), contributing to
balanced hand-held operation. Moreover, three aspherical and two ED (Extra-low
Dispersion) lens elements ensure that images that are sharp and clear from center to
edges and virtually free of color fringing, regardless of the focal length setting. Also,
by utilizing a 9-bladed diaphragm that produces a nearly circular aperture, out-of-
focus images in front of or behind the subject are rendered as pleasing blurs.
Note: This lens offers Silent Wave autofocusing with Nikon F5, F4-Series, F100, F90X/N90s*,
F90-Series/N90*, F80-Series/N80-Series*, F70-Series/N70*, F65-Series/N65-Series*,
Pronea 600i/6i*, Pronea S cameras, in addition to D2H, D1-Series, D100 and D70
Digital Cameras.
* Sold exclusively in the USA.
When Mounted on Nikon Digital Cameras
This lens can be used as a standard zoom lens for Nikon Digital Cameras.
When mounted, the lens’ picture angle becomes 79°– 44° and its 35mm
equivalent focal length is approximately 25.5 – 52.5mm.