Canon A-1 Instruction Manual - Page 21

A

„

I

A

N

O

be"

2

Film

Advance

and

Shutter

Release

At

the

base

of

the

fi

lm

advance

lever

is

the

main

switch

of

the

camera.

When

it

is

at

the

"L"

(LOCK)

setting.

all

active

circuits

are

turned

off

and

the

shutter

button

is

locked

to

prevent

unintentional

shutter

release.

This

switch

should

always

be

in

the

"I,"

position

to

prevent

battery

consumption

and

film

wastage

when

the

camera

is

not

in

use.

such

as

when

it

is

in

a

camera

case.

When

the

main

switch

is

set

at

"A",

the

shutter

button

can

be

operated.

The

shutter

button

serves

to

activate

both

the

AE

meter

and

shutter

operation.

Since

it

is

electro-

magnetic.

it

requires

only

gentle

pressure

for

both

a

very

smooth

shutter

release

as

well

as

immediate

meter

response

when

shooting

in

quick

succession.

Pressing

the

shutter

button

lightly

only

halfway

gives

a

meter

reading

preview

inside

the

viewfinder.

When

you

press

it

gently

all

the

way,

the

mirror

flips

up.

the

diaphragm

closes

down

and

the

shutter

releases.

After

shutter

release.

the

minor

and

diaphragm

automatically

reset

and

the

film

advance

lever

is

ready

to

be

advanced.

With

the

tip

of

your

thumb,

lightly

push

the

film

advance

'Tsar

away

from

the

camera

body

to

its

90

stand-off

position.

Now

it

can

be

easily

operated

with

the

tip

of

your

thumb.

Push

it

all

the

way

to

the

right

in

a

single,

short

120

throw

to

wind

the

film,

cock

the

shutter

and

prepare

the

diaphragm

and

mirror

for

the

next

shutter

release

all

in

one

motion.

Or

you

can

advance

the

lever

in

several

short

strokes.

Each

winding

will

also

advance

the

number

in

the

frame

counter,

indicating

the

number

of

pictures

taken.

Canon A-1 Instruction Manual - Page 21

indicating

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