Nikon AI User Manual

Micro-Niklor
105mm

f/4

Nikon INSTRUCTION MANUAL

NOMENCLATURE

Reproduction ratio scale (lens only)

Reproduction ratio scale (lens + PN ring)

Focusing ring

Micro-Nikkor Lens

Aperture ring

CONTENTS

Foreword

Mounting the lens............................................

Focusing........................................................

Notes on focusing

Determining exposure..................................

Close-up tables

Depth-of-field tables

Features/specifications................................

.......................................................

Recommended focusing screens....

Reproduction ratio.................................

Focusing at predetermined ratio ... .... 8

Depth of field ........................................ .... 9

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With built-in TTL metering

Without TTL metering

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.... 4

.... 5

.... 6

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.... 9

... .10

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... .12

... .13

... .15

7
7

10
11

FOREWORD

The Micro-Nikkor 105mm f/4 is a special telephoto lens designed for
close-up photography at high reproduction ratios. It features the same
optical construction as the much-acclaimed Bellows-Nikkor 105mm
f/4, but with a special focusing helicoid that enables operation from

infinity (°o) to a reproduction ratio of 1 : 2 (half life-size) without the

need for any adapters. The lens offers “automatic maximum aperture
indexing” (Al) with suitably equipped cameras, via the meter cou
pling ridge provided. The ridge and the auto diaphragm function to
gether to permit full aperture exposure measurement; the lens is also
fitted with a meter coupling shoe to permit the same operation with
Nikon cameras which lack the Al facility. In terms of optical perform
ance, the Micro-Nikkor’s excellent flatness of field is a stand-out
feature, enabling virtually distortion-free images at all reproduction
ratios. The application of Nikon Integrated Coating (NIC) further en
hances performance by increasing image contrast, while reducing flare
and ghost, for outstanding color reproduction.
When the Micro-Nikkor 1 05mm is used with the special Auto Extension

Ring PN-11 or PN-1, focusing is further extended from 1 : 2 to 1 ; 1 for
full life-size reproduction.

To get the best results from your Micro-Nikkor 105mm f/4, read this

instruction manual carefully. Keep the manual handy for reference

until you have thoroughly familiarized yourself with the lens and its
operation. A few minutes of preparation will help you avoid costly
mistakes.

MOUNTING THE LENS

Position the lens in the camera’s bayonet
mount, aligning the mounting indexes on the
camera and the lens. Twist the lens counter
clockwise until it clicks into place.
To remove, depress the lens release button on
the camera and twist the lens clockwise.

Note: When mounting the lens on a camera with a
meter coupling lever (Al type), make sure that the
camera’s meter coupling lever is correctly positioned;
when mounting on a camera without this lever (non­Al type), conventional “manual” maximum aperture
indexing is required. In both cases, refer to the
camera's instruction manual.

FOCUSING

The fully automatic diaphragm of the Mlcro­Nikkor enables focusing with maximum image
brightness throughout the entire focusing range