Argus C-44 Manuale Utente Scaricare il pdf (Pagina 9)

Both

the

Wide

Angle

and Telephoto

accessory

lenses

feature

ARGUS

COLOR-MATIC aperture

settings that

may be

used

with

average subjects

in

bright sunlight.

The

Wide

Angle

lens also

has

a

Color-matic distance setting for universal

sharp

focus.

(The

Telephoto lens

should be

focused

sharply

for each

picture.)

Use

yellow

markings

with Kodachrome Daylight film,

red

markings

with

Ektachrome

or

Anscoehrome Daylight

color

films and with Plus-X,

Supreme or similar black-

and-white films

(ASA

32-80).

Like

your

standard Cintagon lens,

both accessory

lenses have

a

DEPTH

OF

FIELD

SCALE

engraved on the lens barrel, showing at a

glance

the

range of

sharp

focus in

your

pictures.

This

range of sharp

focus in

front of and beyond

your

principal

subject

increases

as

you

get

farther

from

your

subject

or use a smaller aperture.

It is

also

greater

in wide

angle

lenses

than

in normal

.

or

telephoto

lenses, because

depth

of

field

increases

as

focal length decreases.

co!or-rnatic

settings

C

and

depth-of-field

scale-

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