Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED Opuscolo e specifiche - Pagina 3

Sfoglia online o scarica il pdf Opuscolo e specifiche per Camera Accessories Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED. Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED 18. Wideangle zoom lens exclusively for use with nikon dx-format digital slr
Anche per Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED: Manuale di istruzioni (2 pagine), Manuale di istruzioni (2 pagine), Manuale dell'utente (2 pagine), Manuale d'uso (2 pagine)

Stampa la pagina

Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED Opuscolo e specifiche

A history of exceptional performance —

NIKKOR lenses

ikon began producing lenses under the NIKKOR name in 1933, and since then more

than 40 million lenses have been sold worldwide. Throughout the years, our unwaver-

ing commitment to quality and innovation has yielded many breakthroughs in the photo-

graphic industry. For example, Nikon introduced the Nikkor Auto 24mm f/2.8 incorpo-

rating Nikon-pioneered Close-Range Correction (CRC) system in 1967, and started

production of aspherical lenses in 1968. In addition, Nikon developed ED (Extra-low

Dispersion) glass which made its first appearance in the 300mm f/2.8 ED Nikkor tele-

photo in 1972, and is now incorporated in many other NIKKOR lenses. And in 2003,

Nikon produced the AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED, as the first lens

optimised for Nikon DX-format digital SLRs in the new DX NIKKOR series.

These are just a few of the many achievements in lens design that exemplify Nikon's posi-

tion as the world's preeminent manufacturer of professional photographic equipment. The

following offers in-depth technical information that will help you understand more fully that

NIKKOR lenses provide superior performance and are thus the best match for your Nikon SLR.

Where it all begins —

Nikon glassworks

To make the finest lens ele-

ments, you must begin with

the finest optical glass. To

ensure this, Nikon does what

few makers can — it manu-

factures the glass for nearly

all NIKKOR lenses in its own

glassworks. This means our

lens designers have over

200 types of glass to choose

from, giving them an excep-

tional variety from which to

select just the right optical

glass for their requirements.

Moreover, when these

requirements demand lens

properties not yet available,

the glass technicians work to

find a solution — which often

results in engineering new

Optical design using computer

types of glass. This is pre-

the NIKKOR lens. The lens

cisely how Nikon developed

mount, too, features similar

Extra-low Dispersion (ED)

materials.

Computers and lens design

glass in 1972 — to meet

design demands for super-

Nikon designers employ the

telephoto NIKKOR lenses.

latest computers and Nikon-

Lens construction

developed software to deter-

The peerless craftsmanship

mine the optical design of

of NIKKOR lens elements

each lens. Using this data

is matched by the structures

together with their accumu-

that

house

them.

Only

lated experience, they create

the

best

materials

are

the finest SLR lenses avail-

used for the mechanical

able.

construction of each lens.

Computer-aided design

Fine

metal

alloys

and

simulation is also used to

polycarbonates make up

ensure the utmost precision

the

helicoids

some

in the optical and mechanical

lenses.

Inner

and

outer

parts of each lens as well as

sleeves

are

tooled

with

the quality of the lens assem-

maximum precision, result-

bly process. In this way, com-

ing in the smooth lens

puters can identify problem-

movement that characterises

atic areas thus leading to

improved overall lens design

ensures that your Nikon

and ensuring the superior

camera is compatible with

performance of the finished

most NIKKOR lenses and

product.

that your Nikon equipment

Electronics — microcomputer

can accommodate future

innovation for precise

system advances.

performance

The recent advances in the

achieves something no other

computer industry play an

design can — it is compati-

integral role in the makeup

ble with both types of lens

as well as design of NIKKOR

drive systems — the conven-

lenses. For in addition to

tional mechanical AF cou-

superior optics, each AF

pling design for wideangle

NIKKOR features a built-in

and standard zooms, and

microcomputer. This micro-

Nikon's

computer works with the

(Silent Wave Motor) system

Nikon AF camera computer

featured

system to provide information

advanced

that ensures fast autofocus,

NIKKOR lenses. This is just

Optical glass

Matrix exposure metering,

one example why the Nikon F

raw materials

Inspecting glass blocks

Coating lenses

Balanced Fill-Flash, and other

mount continues to be an

Nikon innovations in SLR per-

integral part of Nikon camera

formance.

equipment design.

Reliability — lenses made

Only NIKKOR lenses are

to withstand the toughest

designed for today's and

conditions

tomorrow's Nikon SLR cam-

eras, based on information

Each NIKKOR lens is manu-

and insight available exclu-

factured to meet the most

sively within Nikon — includ-

stringent requirements in the

ing autofocusing parameters.

industry. The optical glass is

No other lens maker can pro-

scrutinised to assure it is free

vide this type of assurance.

of imperfections, whereupon

The Nikon F lens mount —

it is then remelted, cast,

a tradition of continuity

ground, polished and hard-

and forward compatibility

coated to emerge as one of

The debut of the original

the world's finest lens ele-

Nikon F also marked the

ments. After being precisely

introduction of what is per-

mounted in lens barrels, the

haps its most significant

lens elements and their

technological innovation —

assemblies undergo a bat-

the Nikon F lens mount.

tery of tests and inspections,

This

legendary

design

including vibration and tem-

perature-resistance analysis.

One of these tests concerns

the lens' Optical Transfer

Function (OTF), which evalu-

ates the resolving power and

contrast of the lens. To per-

Moreover, the F mount

form this test, Nikon devel-

oped the exclusive Nikon

OTF Analyser (NOA).

addition

these

uncompromising tests, Nikon

technicians further guarantee

the performance of the final

product by going over every

exclusive

SWM

detail of every finished lens.

They check and assure the

the

most

mechanical

construction,

supertelephoto

electronics, AF movement,

zoom and aperture mecha-

nisms, and lens resolution.

Adjusting optical axis

All of which ensures that the

lens does what it's supposed

to — provide the outstanding

optical performance and reli-

ability that make NIKKOR

lenses the pro's choice the

world over.

Inspecting resolution