Canon Speedlite 155 A User manual

Cation

DLITE

155

INSTRUCTIONS

English

EcM

The

Canon

Speedlite

155A

automatic

electronic

flash

developed

especially

for

flash

photography

with

the

C&non

AE-1.

also

makes

flash

photography

possible

with

the

A-l

and

serves

ordinary

com¬

puter

flash

with

the

Canon

AT-1,

AV-1

and

other

cameras.

When

the

A-l

AE-1

set

for

automatic

exposure

photography

and

the

pilot

lamp

lights

up,

the

epoch-making

system

the

155A

functions

automati¬

cally

adjust

the

camera’s

shutter

speed

the

synchronization

speed

well

the

aper¬

ture

the

prescribed

aperture.

The

ex¬

posure

automatically

determined

the

amount

light

reflected

back

from

the

sub-

ject.This

flash

employs

unique

averaged

light

sensing

system

which

reduces

excessive

reflection

from

the

central

area

give

better

overall

exposure.

Thus,

the

155A

offers

appropriate

exposure

than

other

current

flash

units.

outstanding

feature

particular

the

155A

the

automatic

switching

from

the

flash

photography

mode

over

the

normal

photography

mode

when

the

flash

not

charged

providing

the

exposure

within

the

coupling

range.

addition,

the

Speedlite

155A

can

used

with

the

Power

Winder

the

AE-1

the

A-l

for

sequential

flash

photography.

Synchro

Cord

Socket

Flash

Reflector

Sensor

attery

Chamber

Cover

ASA

Film

Speed

Setting

Dial

Manual

Position

Auto

Position

(Red)

Specifications

Type:

Electronic

computer

flash

unit

with

series

control

system.

Contact:

Clip-on

type

with

directly

coup¬

led

contact.

With

lock

mechanism.

Guide

Number:

17m

55ft.

(ASA

100).

The

guide

number

obtained

seconds

after

the

pilot

lamp

lights

when

new

batteries

are

loaded.

Flash

Coverage

Angle:

Adequately

covers

angle

view

any

lens

with

focal

length

least

35mm

camera.

Flashing

Intervals:

(Interval

between

firing

flash

and

relighting

pilot

lamp

when

using

new

batteries.)

Alkaline-maganese

batteries:

About

seconds.

Ni-Cd

batteries:

About

seconds.

Number

Flashes:

(When

the

flash

fired

intervals

seconds

with

new

batteries

loaded).

Alkaline-manganese

batteries:

About

300.

Ni-Cd

batteries:

About

90.

Color

Temperature:

The

equivalent

average

daylight.

Correction

made

Canon-exclusive

green-tinted

diffuser.

Flash

Duration:

1/1000

sec.

1/50000

sec.

Flash

Control

System:

measuring

the

amount

light

reflected

back

from

the

subject.

series

control

system

saves

unneeded

energy.

The

flash

offers

averaged

light

sensing

distribution.

AUTO/MANU.

Switch:

choice

three

different

positions:

two

AUTO

posi¬

tions

(red

and

green)

and

MANU.

position.

The

red

position

f/2.8

ASA

100

and

green

position

f/5.6

ASA

100.

Auto

Working

Range:

0.5

with

the

AUTO/MANU.

switch

set

the

red

position.

0.5

with

the

AUTO/MANU.

switch

set

the

green

position.

ASA

Film

Speed:

ASA

800.

Aperture

Scale:

f/1

f/32

Distance

Scale:

0.5

feet

Power

Source:

Use

four

size

alkaline-

manganese

batteries

(AM-3).

Ni-Cd

batteries

can

also

used.

Pilot

Lamp:

When

charged,

the

pilot

lamp

lights

automatically

switching

the

camera

over

flash

photography

mode.

There

flash

the

pilot

lamp

does

not

light

up.

This

lamp

goes

out

when

the

main

switch

turned

off.

The

pilot

lamp

also

works

flash

testing

button.

Size:

105

(2-3/4”

2”

4-1/8”)

Weight:

300

(10-9/16

ozs.),

including

batteries.

Accessories:

Synchronization

Cord

(Sold

separately)

and

Case

Subject

change

without

notice.

Main

Features

The

aperture

selected

the

155A

set

the

camera

automatically

via

electrical

signal

sent

the

flash

(in

the

case

the

AE-1

and

A-l).

the

same

way,

the

light

output

signal

from

the

155A

automatically

sets

the

shutter

speed

the

camera

1/60

sec.

contact).

Battery

consumption

reduced

with

the

employment

the

series

control

system.

Average

distribution

metering

ob¬

tained

suppressing

the

peak

sensitivity

the

center

the

picture.

When

the

main

switch

the

flash

OFF,

the

camera

returns

normal

non-flash

photography

while

the

155

still

attached

the

camera.

Manually

operated

flash

cancelling

the

automatic

flash

possible.

Summary

for

Use

the

155A

See

pp.

8-23

for

detailed

explanation.

Load

the

batteries

correctly.

Attach

the

155A

the

camera.

Set

the

ASA

film

speed

the

calculator

dial.

Select

the

aperture

with

the

AUTO/

MANU.

switch.

Set

the

155A*s

main

switch

ON.

Focus.

Check

the

pilot

lamp.

Check

the

display

information

the

finder.

Press

the

shutter

release

button.

Automatic

flash

photography

means

that

the

photocell

the

flash

picks

the

light

bounced

back

from

the

subject,

its

capaci¬

tor

stores

energy

and

stops

discharge

light

soon

the

flash

unit

determines

sufficient

light

was

reflected

from

the

sub¬

ject

the

unit’s

photocell.

There

are

three

conditions

performing

automatic

flash

photography.

Set

the

155A

the

film

speed

the

film

used.

Set

the

shutter

speed

the

synchroniza¬

tion

speed

(when

using

cameras

other

than

the

Canon

A-l,

the

AE-1,

the

AT-1

the

AV-1).

Decide

the

aperture

used

(and,

with

cameras

other

than

the

Canon

A-1

AE-1,

set

that

same

aperture

the

lens

aperture

ring).

the

above

three

conditions

are

fulfilled,

then

all

there

left

switch

the

flash

on,

focus

and

release

the

shutter.

When

the

Speedlite

155A

used

the

A-l

AE-1

cameras,

there

need

remove

the

aperture

ring

the

lens

from

the

‘A’

mark

(automatic

setting).

Synchronization

Cord

(optional)

the

Batteries

Use

four

new

size

alkaline-manganese

batteries

(AM-3

RL6)

four

new

Ni-Cd

batteries.

Manganese

batteries

can

used

but

will

not

last

long

alkaline-manganese

Ni-Cd

batteries.

remove

the

battery

chamber

cover,

press

and

slide

off

the

direction

the

arrow.

Load

the

batteries

following

the

diagram

the

inside

the

battery

chamber.

the

battery

poles

are

not

facing

the

correct

directions,

the

batteries

may

burst

and

leak,

causing

damage

the

flash.

After

having

loaded

the

batteries,

slide

the

battery

chamber

cover

back

the

direction

opposite

the

arrow

while

holding

down

the

batteries.

careful

fit

the

positioning

tabs

the

bottom

part

the

cover

into

the

grooves.

Since

battery

performance

deteriorates

cold

conditions,

keep

the

batteries

warm

until

just

before

use.

Keep

set

spare

batteries

warm

and

alternate

them

with

the

loaded

batteries

that

warm

batteries

are

always

use.

Especially

temperatures

0°C

lower,

the

use

fully

charged

Ni-Cd

.batteries

recom¬

mended.

the

155A

not

used

for

long

period

tifne.

the

instructions

the

battery

manufacturer

when

recharging

Ni-Cd

bat¬

teries.

When

replacing

the

batteries,

replace

all

the

same

time

with

four

new

batteries,

all

the

same

brand.

The

batteries

should

unloaded

Attaching

the

Camera

Turn

the

main

switch

off.

After

loosening

the

tightening

nut

the

attachment

leg,

insert

the

attachment

leg

all

the

way

into

the

camera’s

accessory

shoe.

not

pushed

completely

in,

correct

electrical

contact

may

not

made.

etighten

the

nut

lock

the

flash

on.

When

attaching

this

flash

camera

that

does

not

have

directly

coupled

contact,

connect

the

optional

Synchronization

Cord

first

the

155A’s

synchro

cord

socket

and

then

the

camera’s

socket.

When

not

shooting

with

flash,

make

sure

the

155A’s

main

switch

OFF.

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