Owner's Manual

ManualsBrandsCanon ManualscameraCanon EF Camera

M Changing Lenses

One

of

the nice features

of

an

SLR

is

its lens

interchangeability.

An

SLR

is

not

really a

SINGLE

LENS reflex at all, because

it

can

use

many

lenses

of

various focal lengths. I n

the

design

of

an

SLR,

the

type

of

lens

mount

and its

construction

are very

important

factors.

The

EF camera

uses

the

Canon

Breech-

Lock

Mount

first

developed in

1959

.

This

unique

mount

combines

the

virtures

of

sturdiness

~

rugged

dependability

and fast

operation

.

The

mount

holds the lens securely in place

with

absolutely

no

wobb

le

or

play

and insures

that

the

lens

is

always

exactly the same distance

from

the

film

plane.

Changing lenses

is

a rapid procedure

requiring

a

little

more than one-eight

of

a

turn

of

the breech-lock ring

on

the

back

of

the lens.

To

remove

the

lens

from

the

camera,

turn

the

breech-lock ring

counterclockwise

until

it

stops and

pull

the

lens away

from

the

camera

body.

Mounting

another

lens

on

the

camera

body

is

a

simply

procedure. Just

al

ign

the

red

dot

on

t

~

e

breech-lock ring

of

the

lens

with

the

red

dot

located

under

the

name

"Canon"

engraved

on

the

front

of

the camera' s pentaprism. Push

the

back

of

the

lens

into

the

camera

body

and

turn

the

breech-lock ring

clockwise

until

it

is

tight.

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