Nikon 55MM F/2B Manuale di istruzioni - Pagina 18

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Reproduction ratio is the relation

of the image size to be recorded on

the film to the subject size. For ex-

ample, if the image on the focusing

screen is one-fifth the size of the

subject, the reproduction ratio is 1:5,

and this is indicated on the reproduc-

tion ratio scale on the focusing ring

by the figure 5.

Focusing at predetermined reproduction ratio

In front of the distance scale are two reproduction

ratio scales engraved in orange. The inner scale with

figures from 1:10 to 1:2 represents values obtained

when the lens is used alone, while the outer scale with

figures from 1:2 to 1:1 represents values obtained

with the PK-I3 ring. Using either of these scales,

you can photograph a subject at a predetermined

reproduction

ratio

without

any complex calcu-

lation. To photograph a subject at 1:5 reproduction

ratio, for example, just turn the focusing ring so that

the figure 5 on the reproduction ratio scale aligns