Omega C760 Manual de usuario

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1

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Modular

Dichroic

and

Universal

Vari/Con™

Diffusion

Lamphouse

Systems

Instruction

Manual

Important

Safeguards

When

using

your

Omega

photographic

products,

basic

safety

precautions

should

always

be

taken,

including

the

following:

1.

Read

and

understand

all

instructions

provided

with

this

product.

2.

Close

supervision

is

necessary

when

this

product

is

used

by

or

near

children.

Do

not

leave

it

unattended

while

it

is

plugged

into

an

outlet.

3.

Avoid

touching

the

lamp

area

of

enlargers

or

other

hot

parts

as

it

may

cause

burns.

4.

Do

not

operate

this

product

if

the

power

supply

cord

has

been

damaged

or

if

the

product

has

been

dropped

or

damaged.

Have

it

checked

out

and

repaired,

if

necessary,

by

a

qualified

service

person

before

using.

5.

Route

the

power

supply

cord

away

from

hot

areas.

Do

not

let

the

cord

hang

over

a

counter

edge

or

across

an

open

area

where

people

pass.

6.

If

an

extension

cord

is

necessary,

use

one

with

a

suitable

rating.

Cords

rated

for

less

amperage

than

the

product

may

overheat.

Route

the

exten-

sion

cord

away

from

open

areas

where

it

may

be

tripped

over

or

pulled.

7.

Always

unplug

the

product

after

use.

Grasp

the

plug

and

firmly

pull

from

the

outlet

to

discon-

nect.

Never

yank

the

cord

from

the

outlet.

8.

Allow

the

product

to

cool

to

room

temperature

before

storing.

Wrap

the

power

cord

loosely

around

the

product.

9.

Do

not

immerse

this

product

in

water

or

other

liquids.

10.

To

reduce

the

risk

of

electric

shocks,

do

not

at-

tempt

to

disassemble

or

repair

this

product.

Always

have

it

serviced

by

qualified

service

per-

sonnel

when

necessary.

Incorrect

reassembly

can

cause

electric

shock

hazards.

These

safeguards

are

prescribed

by

Underwriters

Laboratories

to

be

included

in

this

instruction

manual

for

U.L.

listed

SAVE

THESE

INSTRUCTIONS

products.

Contents

1.

Technical

Specifications

............-.++eeeee-

2

De

IAtKOGUCEOMusicicisrsiscete

ouster

A

crater

otoheleca

seis

s

wrere/era)t

>

3

3.

Unpacking

Your

C760

Dichroic

Lamphouse

.......

4

4.

Assembly

and

Installation

.............-+2++0+s

6

a.

Using

the

C760

Lamphouse

with

the

C760

Enlarger

b.

Using

the

C760

Lamphouse

with

C700,

B600

and

Concept

Six

Enlargers

c.

Using

the

C760

Lamphouse

with

B66

and B22

Enlargers

d.

Using

the

C760

Lamphouse

with

C67

Enlargers

5.

Electrical

Connections

...........-.+seseeeees

11

a.

Timers

b.

Voltage

Stabilizer

Interchangeable

Mixing

Chambers

............--

12

Using

the

Light

Attenuators

.........-...-..-+-

12

White

EightiGontrol

ccc.

oe

ee

crkerstaie

ws

a

ialeters

12

GolorBrin

liner

nts

=

oo

ars...

2e

cic

ceric

eters

nin

etere

rs

13

.

Setting

Filtration

.

Making

Your

First

Color

Print

.

Using

a

Color

Analyzer

.

Exposure

Compensation

.

Light

Attenuator

Filtration

and

Exposure

Time

.

Exposure

Time

with

the

CS-50

Auto

Exposure

Controller

Cio

Q>ona00M

10.

Black

and

White

Printing

.........---+e

eens

14

a.

Printing

by

Diffused

Light

b.

Using

Variable

Contrast

Papers

c.

Your

First

Black

and

White

Print

11.

Copy

Camera

Attachment

and

Slide

Copying

....16

12.

Lamp

Replacement

........------

ses

ee

eeeeeee

16

13.

Glossary

of

Color

Printing

Terms

..........++..

17

14.

Recommended

Reading

......-..-.+e

sere

renee

18

Technical

Specifications

Dichroic

Lamphouse

POW

coo

hecsaiesaecalehannkeus

foltee

sce

sd

dy

ecorere

ote

120VAC,

60

Hz.

ieee

coc

85W/82V,

Pre-focused

Quartz-Halogen

(Cat.

No.

471-400)

Dichroic

Filtration

Range.

.

.

.0-200CC,

C,M,Y,

Fade-free

Diffusion

Lamphouse

POWER

oes

oc:

e

cra:

cTsiencaierepolaeitlogai>

we

stoneerane

120VAC,

60

Hz.

Eamp

cyan

85W/82V,

Pre-focused

Quartz

Halogen

(Cat.

No.

471-400)

introduction

Your

Super

Chromega

C760

Dichroic

or

C760

Universal

Vari/Con™

Diffusion

Lamphouses

provide

features

and

advan-

tages

which

make

it

superior

to

any

similar

unit

now

available.

To

help

you

take

maximum

advantage

of

these

features,

they

are

described

briefly

in

this

section.

The

numbers

in

parenthesis

refer

to

pages

in

this

Instruction

Manual

on

which

these

features

and

their

applications

are

discussed

in

detail.

Thank

you

for

selecting

the

Omega

C760

Lamphouse.

Your

C760

Lamphouse

provides

an

extremely

versatile,

high-output

illumination

system

for

your

Omega

medium-format

enlarger.

Its

many

advanced

features

give

you

the

ability

to

produce

finer

prints

in

color

and

in

black-and-white

quickly,

consistently

and

easily.

You

can

even

use

your

C760

Dichroic

Lamphouse

as

a

light

box

for

duplicating

color

slides.

Like

every

Omega

product

your

C760

Lamphouse

is

built

to

traditional

Omega

standards

of

quality

and

performance.

This

means

the

finest

materials,

meticulous

workmanship

and

a

design

that

is

“human

engineered”

for

efficient,

comfortable

operation.

Your

C760

Lamphouse

should

give

you

many

years

of

trouble-free

service.

In

order

to

get

the

best

results

from

your

C760

Lamphouse,

read

through

this

Instruction

Manual

before

using

the

lamphouse

or

installing

it

on

your

enlarger.

If

you

have

any

questions

or

problems

with

this,

or

with

any

Omega

equipment,

write

to

us

for

assistance.

And,

if

you

have

any

comments

or

suggestions,

let

us

hear

from

you.

You

can

write

to

Customer

Service.

In

U.S.A.:

Berkey

Marketing

Companies

P.O.

Box

1102

Woodside,

NY

11377

or

Berkey

Marketing

Companies

3400

East

70th

Street

Long

Beach,

CA

90805

In

Canada:

Berkey

Photo

(Canada)

Ltd.

70

Floral

Parkway

Toronto,

Canada

M6L2C1

In

Denmark:

Berkey

Technical

A/S

Denmark

160

Vangedevej

2860

Soeborg

Copenhagen,

Denmark

(Copenhagen)

69

61

11

Finally,

because

Omega

is

dedicated

to

a

policy

of

continuous

product

improvement

and

review,

specifications

may

change

without

notice.

Good

luck

and

good

printing.

FEATURES

OF

THE

OMEGA

C760

DICHROIC

AND

DIFFUSION

LAMPHOUSES

Versatile

In

keeping

with

Omega’s

traditional

policy

of

non-

obsolescence,

your

C760

Lamphouse

can

be

used

on

a

wide

range

of

medium-format

Omega

enlargers,

both

current

and

eariler

models.

Your

C760

Lamphouse

can

be

used

with

C760,

C700,

B600,

Concept

Six,

B66,

B22

or

C67

enlarger.

The

only

requirement

is

suitable

mounting

hardware.

This

means

that

even

if

you

change

enlarger

chassis

later

on,

you

can

still

use

your

C760

Lamphouse

simply

by

getting

the

appropriate

hardware

(Page

5).

Expanded

Filtration

Range

(Dichroic

Lamphouse

Only)

The

filtration

range

of

the

C760

Dichroic

Lamphouse

is

from

0

to

200CC,

using

special,

non-fading

dichroic

glass

filters

which

produce

remarkably

“pure”

colors

in

cyan,

magenta

and

yellow.

Extremely

accurate

color

settings

are

obtained

permitting

consistent

and

precisely

repeatable

color

filtration.

(Page

13)

Even

Illumination

By

using

a

specially

designed,

pre-focused

85-watt

Quartz

Halogen

Lamp

with

integral

reflector

and

a

scientifically

designed

mixing

chamber

with

interchangeable

tapered

diffusers,

your

C760

Lamphouse

provides

exceptionally

even

illumination

on

your

baseboard.

This

means

that

print

densities

at

the

center

of

the

image

and

at

the

corners

will

be

almost

the

same.

(Page

12)

High

Light

Output

The

efficient

design

of

your

C760

Lamphouse

means

higher

light

output

for

shorter,

more

convenient

printing

times

even

at

extreme

magnifications.

This

high

light

output

also

permits

exposures

in

the

optimum

ranges

of

times,

from

5

to

40

seconds,

to

minimize

the

dangers

of

color

shift

resulting

from

unusually

long

exposures.

The

high

light

output

in

conjunction

with

our

reversible

girder

makes

possible

floor

projection

for

mural

size

prints.

White

Light

Control

(Dichroic

Lamphouse

Only)

A

special

white

light

lever

quickly

removes

the

dichroic

filters

from

the

light

path

without

disturbing

the

filter

settings.

This

permits

accurate

focusing

and

baseboard

composition

by

white

light.

An

illuminated

jewel

indicates

that

dichroic

filters

are

removed

from

the

light

path.

(Page

12)

Special

Light

Attenuators

To

provide

more

complete

control

over

light

output,

interchangeable

light

attenuators

are

supplied

and

can

be

used

to

reduce

the

light

by

one,

two

or

three

fistops.

This

permits

using

optimum

aperture/

exposure

time

combinations

for

convenient

exposure

or

use

of

creative

controls

such

as

dodging

and

burning-in.

(Page

12)

Attenuators

supplied

with

dichroic

lamphouse

and

available

as

an

optional

accessory

(Cat.

No.

429-330)

for

diffusion

lamphouse.

Diffused

Illumination

for

Black-and-White

Printing

Many

of

today’s

outstanding

photographers

prefer

to

use

diffused

light

for

black-and-white

enlargements

rather

than

the

conventional

condenser

illumination.

One

reason

is

that

diffused

light

tends

to

produce

a

full

range

of

subtle

tones

with

great

accuracy.

In

addition,

diffused

light

serves

to

minimize

graininess

and

“supress”

minor

imperfections,

dust

and

scratches

on

the

negative,

greatly

reducing

the

need

for

retouching.

(Page

14)

Built-In

Infra-Red

and

Ultra-Violet

Filtration

Both

IR

and

UV

emissions

can

affect

the

color

of

your

final

print

even

though

these

rays

are

invisible.

Your

C760

Lamphouse

filters

out

these

emissions

so

that

the

desired

filtered

light

reaches

the

paper,

resulting

in

more

accurate

control

of

final

print

color.

Built-In

Solid

State

Power

Supply

Eliminates

the

need

for

external

transformer

or

power

supply.

You

can

simply

connect

your

C760

Lamp-

house

to

an

Omega

enlarging

timer

or

to

any

con-

venient

standard

110V

60Hz

AC

outlet,

or

240V

50Hz

outlet

depending

on

unit

purchased.*

*Recommended

Optional

Accessory:

For

the

most

precise,

consistent

color

printing

regardless

of

power

fluctuations,

the

use

of

the

solid

state

Voltage

Stabilizer

(Cat.

No.

403-730)

is

strongly

recommended

for

the

110V

60Hz

only.

The

240V

50Hz

units

have

the

stabilizer

built

into

the

lamphouse.

Flow-Through

Convection

Cooling

System

A

combination

of

cooling

fins

and

light-traps

provides

convection

cooling

for

greater

comfort

and

for

reduction

of

heat

on

the

negative,

thus

helping

prevent

negative

buckling.

Convertible

for

Slide

Duplication

(Dichroic

Lamphouse

Only)

By

simply

inverting

your

C760

Dichroic

Lamphouse

on

the

baseboard,

you

have

an

ideal

lightbox

with

complete

color

control

for

duplicating

color

sides.

You

can

use

the

full

range

of

CC

settings

for

color

correction

or

to

create

unusual

effects.

(Page

16)

Unpacking

Your

Lamphouse

1.

Open

the

shipping

container

carefully

and

gently

remove

the

contents.

Check

all

items

against

the

enclosed

check

list

and

do

not

discard

any

packing

materials

until

you

have

accounted

for

all

components

and

mounting

hardware.

Save

the

cartons

for

possible

future

use:

they

are

designed

to

give

your

equipment

maximum

protection

during

storage

and

shipment.

2.

As

noted

eariler,

your

C760

Lamphouse

can

be

used

with

all

current

and

recent

medium-format

Omega

enlargers.

The

only

difference

is

in

the

brackets

that

are

used

to

attach

the

lamphouse

to

the

enlarger

chassis.

Mounting

hardware

and

brackets

are

included

for

C760,

C700,

B600

and

Concept

Six

enlargers.

If

you

are

adding

a

C760

Lamphouse

to

your

present

C67,

B66

or

B22

enlarger,

use

the

appropriate

Mounting

Kit

described

on

page

5.

3.

If

any

parts

are

missing,

contact

your

local

dealer

or:

Consumer

Service

at

the

address

closest

to

you

listed

on

page

3.

Omega

Super

Chromega

C760

Dichroic

and

C760

Universal

Vari/Con™

Diffusion

Lamphouses

1.

Filtration

Control

Knobs

and

Magnified

Scales

for

Cyan,

Magenta

and

Yellow

Filtration

2.

Lamphouse

Access

Cover

with

Cover

Nut

3.

Slot

for

Light

Attenuator

4.

Light

Attenuator

(Three

are

supplied

with

the

C760

Dichroic

Lamphouse

Only.

Available

as

op-

tional

accessory

for

diffusion

lamphouse.

Order

Cat.

No.

429-330)

5.

Interchangeable

Mixing

Chambers

6.

Interchangeable

Tapered

Diffusers

.

Diffuser

Holders

.

White

Light

Lever

and

Illuminated

Jewel

In-

dicator

Light

.

Quartz

Halogen

Lamp

.

Mounting

Bracket

for

C700,

B600

and

Concept

Six

Enlargers

.

Glides

and

Mounting

Screws

for

C760

Enlarger

.

Hexagonal

Nut

.

Wrench

.

Adapter

for

C67

Enlarger.

Not

supplied

with

Lamp-

house.

Order

Cat.

No.

429-368

.

Adapter

Kit

for

B66

and

B22

Enlargers.

Not

sup-

plied

with

Lamphouse.

Order

Cat.

No.

429-366

Vari/Con

Module.

Order

Cat.

No.

429-376

Assembly

and

Installation

USING

YOUR

C760

LAMPHOUSE

ON

OMEGA

C760

ENLARGERS

Note:

The

following

operation

can

be

performed

most

conveniently

by

lowering

the

carriage

to

the

bottom

of

the

girder.

At

the

rear

of

the

lamphouse

are

three

holes,

two

on

one

side

and

one

on

the

other

side.

These

holes

are

for

attaching

the

black

grooved

glides.

There

are

three

Phillips

head

screws

used

to

attach

the

glides

to

the

lamphouse,

using

a

Phillips

screwdriver.

Place

the

screws

into

the

glides

with

the

grooved

end

closest

to

the

head

of

the

screw.

Screw

each

glide

into

place

in

the

rear

of

the

lamphouse.

Tighten

the

screws

to

make

sure

the

glides

are

securely

fastened

to

the

lamphouse.

Mount

the

four

locking

screws

supplied

with

the

C760

Chassis

onto

the

lamphouse

mounting

plate

from

the

rear,

making

sure

not

to

extend

them

beyond

the

mounting

plate.

Place

the

lamphouse

on

the

Film

and

Lens

Stage

Module

so

that

the

glides

fit

into

the

corresponding

key-shaped

openings

on

the

mounting

plate.

When

the

lamphouse

is

in

position,

tighten

the

locking

screws

until

they

make

contact

with

the

rear

of

the

lamp-

house.

Note:

Refer

to

alignment

section

of

your

C760

Enlarger

Instruction

Manual

for

use

of

these

locking

screws

for

optical

alignment.

USING

YOUR

C760

LAMPHOUSE

ON

OMEGA

C700,

B600,

AND

CONCEPT

SIX

ENLARGERS

Note:

The

following

operations

can

be

performed

most

conveniently

if

you

set

your

enlarger

on

the

floor

orona

low

table

so

that

the

top

of

the

girder

is

just

about

at

chest

level.

When

the

enlarger

carriage

is

at

a

convenient

height,

tighten

the

carriage

lock

knob

to

lock

the

carriage

in

position.

(If

you

purchased

your

C760

Lamphouse

as

original

equipment

with

enlarger,

start

at

Step

“4”

instead

of

Step

‘‘1’’.)

1.

Before

starting,

make

sure

that

all

power

cords

are

unplugged

from

timers,

voltage

stabilizers

or

electric

outlets.

2.

To

replace

an

existing

condenser

lamphouse,

unscrew

the

four

slotted

screws

which

attach

the

lamphouse

to

the

carriage

and

lifting

lever.

Carefully

remove

and

store

the

lamphouse

and

all

of

its

parts

for

possible

future

use.

KEEP

THE

FOUR

SLOTTED

SCREWS

as

they

will

be

needed

to

attach

the

C760

Dichroic

Lamphouse.

3.

To

replace

an

older

Dichroic

Lamphouse,

carefully

remove

the

Phillips

head

screws

and

lamphouse

retainers

as

they

will

be

used

again.

When

ready

to

mount

the

C760

Dichroic

Lamphouse,

the

chassis

should

look

as

illustrated

to

the

right.

4.

Take

the

C700

mounting

bracket

and

attach

it

to

the

rear

of

the

C760

Lamphouse

as

shown

in

the

illustration

below,

using

the

hexagonal

nut

and

wrench.

Tighten

enough

to

keep

the

bracket

firm.

H

4

.

Position

the

C760

Dichroic

Lamphouse

(with

the

mounting

bracket

attached)

on

the

film

stage

of

the

enlarger.

Make

sure

the

mounting

bracket

fits

inside

the

bracket

on

the

enlarger

carriage.

Line

up

the

four

screw

holes

and

reinsert

the

slotted

mounting

screws.

When

correctly

installed,

the

enlarger

with

the

C760

Dichroic

Lamphouse

should

look

like

the

il-

lustration

below.

.

In

order

to

provide

even

illumination

over

the

en-

tire

negative

area,

and

to

minimize

light

leakage

around

the

negative

stage,

you

must

align

the

lamphouse.

7.

To

align

the

lamphouse,

attach

the

lamphouse

to

a

power

source

—

either

a

timer,

a

voltage

stabilizer

or

directly

into

the

AC

line.

Pull

the

lamphouse

lifting

lever

of

the

enlarger

forward

to

raise

the

lamphouse

and

insert

a

film

carrier

of

the

largest

size

negative

you

will

be

using

into

the

enlarger.

Lower

the

lamphouse

lifting

lever

so

that

the

lamphouse

rests

on

the

film

stage.

8.

Loosen

the

hexagonal

nut

on

the

mounting

bracket

slightly

and

adjust

the

C760

Lamphouse

so

that

the

light

seals

at

the

bottom

make

contact

with

the

film

carrier.

The

edges

of

the

film

carrier

should

be

square

within

the

light

seal

as

shown

in

illustration

below.

9.

When

the

lamphouse

is

correctly

aligned,

you

should

not

be

able

to

see

any

significant

light

leakage

between

the

lamphouse

and

the

film

carrier.

At

this

point,

tighten

the

hexagonal

nut

to

secure

the

lamphouse.

Switch

off

the

power.

Your

C760

Lamphouse

is

ready

for

use.

USING

YOUR

C760

LAMPHOUSE

WITH

OMEGA

B66

OR

OMEGA

B22

ENLARGERS

Note:

The

following

operations

can

be

performed

most

conveniently

if

you

set

your

enlarger

on

the

floor

or

ona

low

table

so

that

the

top

of

the

girder

is

about

chest

level.

When

the

enlarger

carriage

is

at

a

convenient

height,

tighten

the

carriage

locking

knob

to

lock

the

carriage

in

position.

1.

Disconnect

all

power

cords

before

starting.

2.

Remove

the

existing

condenser

lamphouse

from

your

enlarger

chassis

following

the

instructions

given

in

the

instruction

manual

for

your

par-

:

ticular

model.

Be

careful

with

condenser

lenses

H

and

enlarging

bulbs

to

avoid

damage

or

breaking.

Store

all

parts

carefully

for

possible

future

use.

Press

the

C760

Lamphouse

into

position

so

that

,

the

mounting

arms

clear

the

Phillips

head

3.

Attach

the

B66/B22

mounting

bracket

to

the

rear

Screws.

hed

the

lamphouse

is

eanectiy

posi-

of

the

C760

Lamphouse

as

shown,

using

the

tioned,

the

screws

should

be

within

the

oval

hexagonal

nut

and

wrench.

Tighten

enough

to

cutouts

of

the

mounting

arm,

as

shown.

keep

the

bracket

from

moving.

i

BS

4.

Position

the

C760

Lamphouse

with

the

mounting

bracket

attached

in

the

approximately

correct

position

on

the

film

stage

of

the

enlarger.

Then,

spread

the

mounting

arms

slightly

so

that

they

slide

over

the

Phillips

head

screws

at

the

top

of

the

carriage

side

plates.

You

will

have

to

exert

some

force

to

spread

the

arms

sufficiently

to

clear

the

heads

of

the

screws.

5.

Install

the

right

side

mounting

hardware

(right

7.

Repeat

the

operation

described

in

Step

‘5”

on

side

when

you

are

facing

the

enlarger)

which

the

LEFT

side

of

the

lamphouse.

consists

of

a

knurled

screw

and

a

black

plastic

tab

mounting

bushing.

Secure

the

hardware

but

8.

To

align

the

lamphouse,

place

a

film

carrier

for

DO

NOT

TIGHTEN.

the

largest

size

negative

you

will

be

using

on

the

film

stage

of

the

enlarger.

Proper

alignment

en-

sures

even

illumination.

6.

Position

the

enlarger

lifting

arm

lever

on

the

left

side

and

use

the

slotted

screw,

star

washer,

and

flat

washer

in

combination

to

make

up

the

lifting

arm

adjustment

assembly.

The

star

washer

should

go

next

to

the

arm,

followed

by

the

flat

washer

and

then

by

the

slotted

screw.

Install

the

screws

in

the

tapped

hole

at

the

front

end

of

the

lamphouse

mounting

arm.

Secure

but

DO

NOT

TIGHTEN.

Then

move

the

lifting

arm

so

that

the

lifting

lever

screw

is

approximately

in

the

center

of

the

oval

cutout

on

the

arm.

Now

tighten

this

screw.

This

adjustment

controls

the

amount

of

lamphouse

lift

and

can

be

changed

later

if

desired.

9.

Attach

the

lamphouse

power

cord

to

an

Omega

timer

or

directly

into

the

a

standard

AC

outlet.

If

the

C760

Lamphouse

is

attached

to

a

timer,

turn

on

the

switch.

If

the

lamphouse

is

connected

directly

to

an

AC

outlet,

it

will

go

on

automatically.

10.

Position

your

C760

Lamphouse

so

that

the

light

seal

at

the

bottom

comes

in

contact

with

the

film

carrier

squarely.

Once

the

lamphouse

is

in

its

correct

position,

simply

tighten

the

hexagonal

nut

and

all

of

the

positioning

screws

on

the

lifting

lever

arm.

Turn

off

the

power.

11.

Finally,

you

might

want

to

check

the

alignment

of

your

enlarger’s

film

carrier

stage,

lens

stage

and

baseboard.

All

of

these

stages

should

be

completely

parallel.

For

precise

determination

of

alignment,

Omega

provides

a

special

Enlarger

Alignment

Too!

(Cat.

No.

479-027)

which

is

both

simple

to

use

and

precise.

For

more

infor-

mation,

contact

your

local

dealer

or

Consumer

Service,

Omega,

Woodside,

New

York

11377.

USING

YOUR

C760

LAMPHOUSE

ON

OMEGA

C67

ENLARGERS

1.

Disconnect

all

power

cords.

2.

Depress

the

enlarger

lamphouse

lifting

lever

until

it

locks

into

place,

thus

raising

the

lamphouse.

3.

Remove

the

power

cord

from

the

clip

at

the

rear

of

the

enlarger

carriage.

Slide

off

the

condenser

lamphouse

by

lifting

the

entire

unit

until

it

clears

the

slots

at

the

front

of

the

enlarger

carriage.

Store

the

condenser

lamphouse

and

all

parts

carefully

for

possible

future

use.

4.

Attach

the

C67

mounting

bracket

to

the

rear

of

the

lamphouse

making

sure

that

the

bottom

edge

of

the

bracket

contacts

the

bottom

lip

of

the

lamp

house.

Tighten

securely

using

the

hexagonal

nut.

10

5.

Holding

the

C760

Dichroic

Lamphouse

by

the

side

plates,

slide

the

grooved

square

guides

into

the

slots

at

the

front

of

the

carriage,

gently

pushing

the

lamphouse

down

until

it

comes

to

a

complete

stop.

Raise

the

lamphouse

lifting

lever

to

lower

the

C760

Lamphouse

so

that

it

now

rests

on

the

negative

stage.

Slip

the

power

cord

from

the

lamphouse

under

the

clip

at

the

rear

of

the

enlarger

carriage.

.

Your

C760

Lamphouse

should

now

be

in

position

for

alignment.

Take

a

film

carrier

of

the

largest

size

negative

you

will

be

using

and

slide

it

into

the

negative

stage.

.

Connect

the

power

cord

of

the

C760

Lamphouse

to

an

Omega

Timer

or

directly

into

a

standard

AC

outlet.

If

you

are

plugged

into

a

timer,

turn

on

the

timer

switch.

If

you

are

plugged

into

an

outlet

directly,

the

lamphouse

will

automatically

go

on.

.

In

order

to

ensure

even

illumination

you

must

align

the

lamphouse.

Position

the

lamphouse

so

that

the

light

seals

at

the

bottom

are

squarely

in

contact

with

the

film

carrier.

When

your

C760

Lamphouse

is

correctly

positioned,

you

should

not

be

able

to

see

any

significant

light

leakage

between

the

lamphouse

and

the

film

carrier.

Once

the

lamphouse

is

properly

aligned,

tighten

the

nut

holding

the

mounting

bracket

(using

the

open-end

wrench

supplied

for

that

purpose)

to

maintain

the

lamphouse

in

the

correct

position.