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NOMENCLATURE
1 Built-in telescopic lens hood 10
2 Preset ring alignment index 11
3 Preset ring locking screw 12
4 Tripod collar locking screw 13
5 Tripod collar alignment indexes 14
6 Insertion-type filter holder 15
7 Built-in rotatable tripod mounting collar 16
8 Shoulder strap eyelet 17
9 Focusing ring
FOREWORD
Belonging to a new generation of super-telephoto lenses, the Nikkor ED 800mm f/8 IF
offers unparalleled image quality and handling
ease,
plus automatic diaphragm operation.
The use of Extra-low Dispersion (ED) glass in the lens design drastically reduces chro-
matic aberration (i.e., the inability of a lens to bring all wavelengths of visible light,
especially red and blue, into the same plane of focus). The result is images that are
crisp and virtually free of "color fringing" even when the lens is used wide open at its
maximum aperture.
Nikon Integrated Coating (NIC) is applied to the surfaces of lens elements to reduce
flare and improve contrast and color rendition.
For improved handling, this lens utilizes Nikon's Internal Focusing (IF) system, in
which the lens elements are moved internally. Without the traditional focusing helicoid,
there is no increase in the overall length of the lens as it's focused closer; thus, it is
much easier to hand-hold. In addition, the lens is lighter and more compact than pre-
vious models at the same focal length. Other convenient features include a built-in
telescopic lens hood, built-in tripod mounting collar, presettable focusing ring for
rapid refocusing to a certain distance, and full aperture through-the-lens metering with
Al-type Nikon and Nikkormat cameras*.
The ED 800mm f/8 IF has special insertion-type filter holders accepting either 39mm
screw-in or gelatine filters-the same type used with the Reflex-Nikkor 500mm f/8 and
1000mm f/11. Because of its long focal length, this lens is perfectly suited for a wide
variety of situations, including photojournalism, sports and wildlife photography, as
well as taking pictures of the sun and moon
itself.
* When using this lens with non-AI cameras, exposure should be measured by the
stop-down method. (For details, refer to your camera's instruction manual.)
MOUNTING ON A TRIPOD
For maximum picture sharpness and freedom from camera shake, the use of a tripod
is recommended at all times. The Nikkor ED 800mm f/8 IF is incorporated with a
sturdy, full rotatable (360°) built-in tripod mounting collar for just such purposes.
To attach to the tripod, position the collar tripod socket on the tripod screw and
tighten. To rotate the lens (with attached camera) for vertical or horizontal format,
loosen the collar locking screw, rotate the lens to the desired position, and retighten
the locking screw to secure the assembly. For convenience while positioning, index
marks are provided at 90° intervals around the tripod collar.
PRESET FOCUSING B
The focusing ring is fitted with a special ring for use when rapid refocusing to a specific
object distance is desired; the click-stop action of the ring enables operation "by touch"
for greater speed. To preset the lens, loosen the preset ring locking screw, rotate the
focusing ring as far as it will go in either direction, turn the focusing ring back to the
Distance scale
Distance scale index
Aperture index dot
Aperture indexing post for Nikon SB-E Speedlight
Meter coupling ridge
Aperturc-direct-rcadout scale
Aperture ring
Aperture scale
10