Nikon BC-7 User manual

Nikon

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NIKON

FLASH

UNIT

BC-7

the

compact

and

light

weight

and

yet

quite

powerful flash

unit,

fit

the

Nikon F camera.

FIG. 1

FEATURES

The

flash

unit

BC-7

makes

electrical

connection

with

the

flash syn-

chronization

terminal

the

Nikon

Photomic,

Photomic

FTN

camera,

only

fitting

into

the

camera

accessory

shoe,

eliminating

the

need

for

connecting

cord_

•

provided

with

three

-way

socket

which

permits

the

use

three

types

flash

bulbs:

bayonet

base,

miniature

base

(M2)

AG-l

ll-Glass

•

When

you

insert

a flash

bulb

into

the

socket,

charges

the

capacitor

instantaneously

and

automatically,

thus

avoiding

drain

the

battery.

•

provided

with

test

circuits

for

checking

each

flash bulb,

charg-

ing

the

capacitor,

the

synchronization

circuit

well

connection

the

flash

unit.

•

The

synchronization

cord

socket,

provided

besides,

permits

the

US\!

the

unit

for

extension

flash.

•

The

collapsible, fan-fold ty

reflector

ffords

compactness

great

facility

for

carrying

about

the

unit.

SPECIFICATIONS

Flash bulb socket

Three-way

type

socket

permits

use of

anyone

the

following

three

types

of flash

bulbs:

Bayonet

base

Miniature

base

AG-l

-G

las

Illuminating angle

Approx_ 65°

Tilt-back angle

the reflector (for bounce flash)

Click-stops

0°

(for

general

use),

30°, 60°, 90°

and

120°

Power source

B-C

type

The

capacitor

automatica

charged

fitting

a bulb

the

socket.

Battery to be used

laminated

dry

battery

(Eveready

No_

504

the

similar)

(This

type

battery

available

the

market.)

Testing system

Checks

the

synchronization

circuit,

connection

the

ash

bulb

and

charg

cuit.

Connection to the camera

Direct,

cord

ess

connection

the

ash

terminal

the

camera

ac·

cessory shoe.

Synchronization cord socket

type

socket

is provided

for

connecting

the

cord

fClr

extension

flash.

Weight

Approx. 180 g

ithout

minated

battery

)

NOMENCLATURE

FIG. 2

Thr

·way so

et FIG. 3

e Cordless contact

FIG. 4

Exposure

Calc

ator

Ejector

Char

testing button (white)

(to check for the corr

con

nection of

h bulb)

LOADING THE BATTERY

Pushing

downwards

the

rear

cover

clip

the

back

the

unit,

open

the

cover.

Insert

lamina

battery

15V

(Eveready

No. 504

the

simi.

ar),

into

the

unit,

according

the

plus

and

minus

symbo

ls.

Loop

the

vinyl

tape

under

the

battery

facilitate

the

removal

the

battery.

FITTING

THE CAMERA

Slide in

the

foot

the

flash

unit

from

the

rear

the

camera

into

the

camera

accessory

shoe

far

will go,

whe

the

terminal

the

flash

unit

comes

int

o con·

act

secure

ly wi

that

the

rear

the

accessory

shoe.

detach

unit,

reverse

the

above

procedure.

'is

convenient

fold

the

reo

flector

mounting

smount·

ing

the

flash unit.

(Fig

I FIG. 5

CHECKING SYNCHRONIZATION CIRCUIT

Checking

the

cir

cuit

shou

done

before

the

camera

is loaded

with

the

film.

upwards

the

reflector,

attached

the

camera,

the

position

for

bounce

flash

ustrated.

(Fig.

6 (a))

Keep

pushing

the

red

button

for

3-4

seconds.

Whi

pushing

this

button,

depress

the

shutter

release

button

the

camera

(Fig.

6 (b))

the

inside

test

lamp

glows

instantly

(visible

through

the

back

cover

the

flash

unit),

indicates

that

the

circuit

functioning

properly

Note:

the

test

lamp

does

not

light

this

test,

check

the

following:

• I

mperfect

con

act

the

terminals

•

Drain

the

battery

•

Trouble

the

capacitor

•

Disconnection

the

test

lamp.

etc

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