Nikon Micro-Nikkor 200mm f/4 IF Руководство по эксплуатации - Страница 8

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F O C U S I N G - continued

Focusing at a Predetermined Ratio

Above the distance scales on the focusing ring

is the reproduction ratio scale inscribed in

orange. The scale, with figures from 1:10 to

1:2, represents the reproduction ratios ob-

tained when the lens is used alone.

Using this scale, you can photograph at a pre-

determined ratio without calculating the dis-

tances required. To photograph at a reproduc-

tion ratio of 1:5, for example, just turn the

focusing ring until the orange-colored number

" 5 " is aligned with the distance scale index;

then aim at the subject and adjust your posi-

tion (close to, or farther away from, the sub-

ject) until the image appears sharp and crisp

on the focusing screen.

When the Nikon Teleconverter TC-301 is at-

tached, the reproduction ratio increases to 1:1

and the automatic diaphragm still functions as

before.

Reproduction Ratio

The reproduction ratio is the numerical ex-

pression of the relationship between the image

size and the actual size of the subject. For

example, if the image on the focusing screen is

one-fifth the actual size of the subject, the

reproduction ratio is said to be 1:5, and is

indicated on the reproduction ratio scale of

the Micro-Nikkor 200mm f/4 by the number

" 5 . "