Infrared index, Distance scale – Canon IV-S2 User Manual

Page 15

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Infrared Index

R marking indicates the position at which focusing should be set when using an

infrared

film.

sure

use

proper

infrared

filter which is reco.mmended by

manufacturer of infrared films, After accurate

focusing is done in the usual man

ner read the object distance off the Distance Scale

of the lens. Then turn the lens

so that the object distance will be exactly opposite

the R index mark. The lens is

now in focus for infrared photography.

Distance Scale

Index Marie

When accurate focus (see page 10) has been

made

any

object,

the

actual

distance

from

the

film*

the

object

shown

the

Distance

Scale

which

marked

from

3.5 to infinity (oo) in feet. Lenses with metric

scales are provided when specially ordered.

*Shown by fhe Red Doi near the Accessory Clip.