Durst M 670 BW, M 670 COLOR Operating Manual

DurstM

670

·BW

Durst

Operating

M

manual

670

COLOR

We

are pleased that you have chosen the Durst

M 670 BW

is the

of

experience in enlarger design
photographic
you supreme results

or

product

Durst M 670 COLOR. This

of a specialist

firm with

and

application.

We

are sure

and

much pleasure.

production

quality
over

40

that

it

enlarger

years

in every

will

give

The Durst
white
Durst's
latest state

This
and
or

Durst M 670 COLOR enlarger.

if

you make

study

to

M 670 BW

and

colour

highest

of

operating

straightforward

full

this manual thoroughly,

and

Durst M 670 COLOR

enlargers respectively are made to

quality

standards,

incorporating

the art.

manual

use

aims to familiarize you in a

fashion

of

whit

the Durst M 670 BW

But

it can do

it. So please take the trouble

it

will
erable benefit. Keep the manual safely
depth, when necessary, to

We

wish you much fun

and

specific

success in

questions.

enlarging.
Durst Phototechnik GmbH, Bolzano,

Italy

prove

of

for

reference in

your

home

black-and-

the

clear

so

only

consid-

Contents

General note
Technical data

outfit.

The
Checking the contents

Assembling the
Centering the lamp in the Ourst M 670
Inserting film strips
Lenses, lens boards and maximum image sizes
Vertical adjustment
Focusing
The white-light setting

Part enlargements

Giant enlargements
Correcting converging verticals
Copying
Black-and-white enlargements with the Ourst M 670
Colour enlargements from

cies with the Ourst M

enlarger

or

single negatives .

of

670 COLOR .

BW

the Ourst M 670 COLOR

colour

negatives

or

transparen-

BW.

Page

10
10
10

11

11

11
11
11

12

12

Black-and-white enlargements on variable-contrast papers

6

with the Ourst M

6

Accessories

6

7

7

9

9

Ourst M
Summary
Accessories

M 670 BW 16

Black-and-white conversion
with the Ourst M

Black-and-white conversion kit

with the Ourst M

Colour conversion kit

Ourst M 670 COLOR .

Colour conversion kit

Ourst M
Accessories
.l\ccessories

M
Accessories

Ourst M 670 COLOR .
Miscellaneous accessories
Care and maintenance

670 COLOR . 14

670 COLOR . 18

670 COLOR

670 COLOR . 14

for

black-and-white enlargements with the

of

available accessories 15

for

colour

enlargements with the Ourst

kit

for

670

BW

. 17

670 BW . 18

for

enlarging

for

enlarging 6 x 6 films with the

for

film sizes smaller than

for

enlarging

for

enlarging transparencies with the

disc

enlarging

for

enlarging 6 x 6 cm films

6x7

cm films with the

24X36

film with the Durst

6x7

cm films

mm 18

Page

18

19

19
19
19

5

10-------,

6---

7---

----5

~---4

:----8

General note
The Durst M
enlargers
film sizes from disc film up to 6 X 7 cm
The standard versions of the Durst M

670

M

other film sizes from disc up to
the aid
can be converted to a fully functional
colour

COlOR
To facilitate getting the right combination together, complete

conversion kits are available for the main sizes. The chart on

page
these and other accessories.

670 BW and M 670

for

black-and-white and

COlOR

are equipped for enlarging

COlOR

are efficient amateur

colour

prints, taking all

(21/4 X 23/4 in.).

670 BW and Durst

24x36

mm

films; all

6 x 7 cm can be handled with

of

appropriate accessories. Further, the Durst M 670 BW

conversion kit available separately; similarly the M 670

can be converted to a black-and-white enlarger.

15

of

this instruction manual shows the relationship

colour

enlarger with a

of

11------'

2------

3------

'-----9

Technical data

Height

Baseboard size

Usable baseboard area
Optical

Magnification with

Filter size for filter drawer

(Standard outfit)

Filter size

(6X7

Light source

Light source

Maximum filter densities with

Durst M

axis/column

for

670

filter

of

of

COlOR

cm film)

base

distance:

100/105

drawer

Durst M 670 BW

Durst M 670

: Approx.

(49.2 in.)

: Approx.

(1B.1

x 19.7 in.)

: Approx.

(15.75x

Approx. 210

35

mm

lens: Min. 4.6 x linear

50

mm lens: Min.

BO

mm
mm

COlOR

Max.
Max.

lens: Min.

Max.

lens: Min.

Max.

:

75X75

: B2XB2 mm

: 150 watt (max.) opal

lamp (Order code:
DULAMP

: 12 volt 100 watt tung-

sten-halogen lamp
(Order code:
COlAMP

: Densitometric settings

up to
magenta and eyan

1250

mm

460 X

500

mm

400 x 500 mm

19.7 in.)

mm

(B.3

2B.0 x linear

2.2

x linear

19.0 X linear

1.5 x linear

11.0 x linear

1.5 x linear

7.B

x linear

mm

150)

100

S)

130 yellow,

in.)

----15

----4

f----8

t-----19

----3

6

outfit

The

Depending on the outfit ordered, the package contains:

(a) The DUrst M

consisting

(1) The baseboard (1)

(2) The column (2) with column base (3)

(3) The lower section

(4) The condenser lamphouse (5)

(5) The condenser (6) for all film sizes up to

(6) The negative carrier (7)

(7) Format masks

(B)

The lamp fitting (9)

(9) A 150 watt opal lamp (10)
(10) A lens board (11)
(11) A spanner (12) with bolts (13) and backing plate (14)
(12)

A diffuser with retaining springs
readings . .wi\h enlarging exposure meters

or

(b) The Durst M 670

(1) The baseboard (1)

(2)

The column

(3) The lower section

(4) The colour mixing head (15)

A TRA 305 transformer

(5)

-

as

670 BW enlarger

of:

(2)

ordered

for

of

the enlarger head (4)

(B)

for

24x36

mm films

for

50

mm

lenses

COlOR.

and column base (3)

consisting of:

of

the enlarger head (4)

or

EST 305 voltage stabiliser (16)

black-and-white.

24x36

for

diffused-light

mm

12

13

---=

....

..::---1

"'1---20

2

21

(6)

A mixing box

(7)

The negative

Format masks

(8)

(9) A 12
(10)
(11)
(12)
(13)

Checking the contents

The Ourst M
special break-proof package. Please
included
thoroughly clean and dust all components with a cloth.

Assembling the enlarger

Place the column
hold the baseboard
can push the hexagonal bolts
(14)

Tighten these bolts with the spanner
the baseboard with the column attached on the table with
the rubber feet
the enlarger head
with the locking knob (22).

volt
A lens board
A spanner
A blanking plate
A diffuser

colour

with

as

and the holes

(17)

for film sizes up to

carrier

(7)

(8)

for

24X36

100

watt tungsten-halogen lamp

(11)

for 50 mm lenses

(12)

with bolts

(19)

with

retaining springs

analysers

670

BW

or

Ourst M

listed in the above section. Before assembly

(2)

with the column base

(1)

against the column base

of

the baseboard

(20)

down. Next attach the lower section

(4)

to the supporting stud (21) and secure

mm films

(13)

or

enlarging exposure meters.

670

(13)

through the backing plate

24

X 36 mm

(18)

and backing plate

for

diffused-light readings

COlOR
check

(1)

is shipped in a

that all parts are

(3)

on

a table and

(3)

and column base (3).

(12)

supplied. Now place

(14)

so that you

of

If

your enlarger

(9)

from below into the
Screw the 150 watt opal lamp
holder

(23).

Then mount the black-and-white condenser lamphouse

lower

the
the

two
Below the condenser lamphouse
supplied to the milled screws
To
cutouts
and screw the latter tight.
Plug the lead
exposure timer and connect the latter to the mains supply.

milled screws (24).

do

this,

of

is

the Durst M 670

lower

section

of

the enlarger head

slack

off

the condenser unit under the milled screws

the two milled screws, engage the

of

the Ourst M 670 BW into the socket

BW,

section

(10)

(25)

insert the lamp fitting

of

the enlarger head (4).

supplied into the lamp

(4)

and secure with

(5)

attach the condenser

provided

for

the purpose.

of

(5)

two

(25)

an

over

(6)

5625

7

28----\.,.,..

18------1~

~---15

~-26

27

If your enlarger

12

volt tungsten-halogen lamp

(15)

so that the lamp itself is between the lamp support
and the retaining spring
pointing down and engaged. The lamp must
located in the lamp support which automatically centres the
lamp and so ensures even illumination.
Never touch the inside surface of the reflector

fingers.

From below place the blanking plate

for

the black-and-white lamp fitting and secure with the milled
screw (29).
Place the colour mixing head
the enlarger head
screws (24).

is

the Durst M

(4)

and secure with the two milled

670

COlOR, fix the 100 watt

(18)

in the colour mixing head

(27)

with the stud on the lamp reflector

(19)

(15)

over the lower section of

(26)

be

correctly

(28)

with your

over the opening

Below the
supplied with the
purpose. To do this, first slack off the milled screws, engage
the two cutouts of the mixing box
(25)

Plug the lead
TRA
the lead from the transformer
socket
mains supply socket.

In

the negative carrier
(8) - with the lettering up - into the top section and the
SIXMA
of the negative carrier.
Push the negative
Fully screw the lens
Fit the lens and board in the lens
with the milled screw
from the front.

colour

mixing head
two

milled screws

and screw the latter tight.

305

of

the M

transformer

of

the exposure timer and the lead of the latter into a

35

mask (with the lettering down) into the lower section

670

or

(7)

carrier

(30)

(32)

(15)

fit

the mixing box

(25)

provided

(17)

under the milled screws

COlOR

of the EST

insert the SIVOMA

into its opening in the enlarger head.

to

so that the aperture scale is visible

into the socket of the

305

or

be used into the lens board (11).

voltage stabiliser. Plug

voltage stabiliser into the

35

format mask

carrier

(31)

and secure

for

(17)

the

IMPORTANT:

Enclosed with the Ourst M
is a diffuser and a retaining spring. These are used in the red

670

BW and the Ourst M

670

COlOR

7

8"-----'

8

filter

holder
readings with
To fit the diffuser, push the red
red

filter
supplied
into

Centering

in place

holder, insert in its place the

and fit the retaining spring. The

the

light

the

colour

path

lamp

of

the red

analysers

for

full-area meter reading.

in

the

Durst M 670 BW

filter

for

or

full-area integrated

enlarging exposure meters.

filter

out

of

its seating in the

circular

diffuser

diffuser

now swings

Before inserting a film, precisely center the opal lamp
illumination
as

follows:

Switch on
and
or

darker

lampholder

the
spots disappear. Then secure the lamp
position by screwing

Before adjusting the lamp
correct
glasses

Inserting
Dust and

enlargements. So before enlarging clean any
with a sable

Remove fingerprints by gently
film cleaning fluid
negatives in
not

to scratch the film's emulsion layer.

To insert
enlarger
cutout
(which now
the

enlarger

of

the

projected

the

without

enlarger

a negative.

sections. If necessary centre the lamp by pushing

(9)

up

combination

for

the film size being enlarged.

film

strips

or

fingerprints

or

antistatic brush.

for

the

carrier. Take special care in cleaning so as

single

negatives fully pull

head. Locate the single negative precisely over the

to utilise

the

holds

full image area. Then

the film securely in place) and push

head.

image on

lamp with the lens at full aperture

Check

or

down

tight

the milled

check

of

lens, condenser and film masks

single

negatives

on films show up

more persistent dirt. Insert only fully

the

baseboard. Proceed

the

projected

or

by turning

screw

that you are using the

wiping

the

area

it

till

holder

(9)

(29).

disturbingly

dirty

a fluffless cloth. Use a

carrier

out

close

the

for
all

in the desired

negatives

of

for

shadows

dark

or

in

the

carrier

it

even

dry

into

9

When you insert film strips the negative carrier can remain in

(33)

of

the enlarger head. Slightly raise the top section

the

negative carrier; it then stops in its open position. Now slide in

the

the film strip from
strip abuts the locating pins

front. It is correctly located when the

(34)

and the full film area appears

projected on the baseboard once you switch on the lamp.

(35)

Then close the negative carrier pressing the key

at the

top. Preferably cut the film into short strips to avoid scratching,

(34)

into

their

Turn the locating pins

mm films

or

into

their

rear position for No. 120

front position

for

or

220 rollfilm.

24 x 36

The pins
the negative carrier does

(34)

must be turned fully forward

not

close properly and could jam

or

back, otherwise

in the enlarger head.

Lenses, lens boards and maximum image sizes

The table below shows the print sizes obtainable with different
negative

100/105 mm

or

film sizes and the lenses and lens boards required:

Lens Lens board

VEGATUB

BOmm

50mm

35

mm

28mm

SIRIOPLA39

SIRIOPLA 39"

SIRIOTUB39

UNIDISC

39

si2:e

Film

6x7

cm

(2'14

X

2314

in,)

6X6

cm

(2'/4 X

2'/4 in.)

24x36

mm

26x26

mm

1BX24 mm
13x17

mm

18X24

mm

13x17

mm

Disc

Print

maximum

40X50

cm

(16X20 in.)

4Ox50cm

40X50cm
40X50 cm
30X40

cm

(12X16 in.)

20X30

cm

(Bx

12

in.)

30x40

cm

3Ox40cm
24X30

cm

(9

/2

X

12

in.)

'

Si2:e
(approx.)
minimum

9xi3

(3'/2X5

9x9

(3

12

'

3

/2

in.)

'

9x

13

9x

13

9x13
9X13

9X13
9X13

9x13

cm

in.)

cm

x

cm'
cm"
cm'

cm'

cm'
cm'

cm'

10

* The sizes indicated are paper sizes. Smaller enlargements

are possible (see minimum magnifications).

** The

NOTE: Lenses with M25 screw thread
via a FLARING reducing ring (available separately).

Vertical adjustment

Raise
of
and precise vertical adjustment.

The wide profile column
The column carries scales in cm and inches

magnifications

Focusing

Focus by raising
drive operated by the focusing knobs
at the full lens aperture on the paper holder

placed on the baseboard. Insert a sheet
the same size and thickness
Ideal is the back

knob until the image projected on the baseboard appears
sharpest. After focusing you may need to readjust the image
size (and refocus).

50

mm

plastic barrel) requires the SIRIOTUB

Schneider Componar C

or

lower the enlarger head with the knob and crank

f/2.8

(new version in

39

lens board.

fit

the above lens boards

the carriage. A rack-and-pinion drive ensures smooth

(2)

makes the enlarger very rigid.

(38)

for

the

50

mm,

80

or

lowering the lens carrier via the friction

as

of

a developed print. Rotate the focusing

the enlarging paper to be used.

(37)

mm

(39)

of

and shows

and

105

mm

at each side. Focus

or

masking frame

white paper of

lenses.

(36)

The white-light setting of the Durst M 670 COLOR
To facilitate focusing, the colour filters can be swung out of the

light

path with the white-light lever

(47)

shows when the filters are swung out. After focusing
swing the filters back into
the same lever (40).

Part enlargements
Even expert photographers do not always manage to frame

their picture exactly during the camera exposure. Such
framing
way you can often obtain several interesting enlargements
from one negative
to bring the required image portion within the masking frame
area on the baseboard.

Giant enlargements

or

cropping is only possible during enlarging. This

or

their

transparency. Adjust the magnification

(40).

The white-light signal

original position again with

For giant enlargements
For floor projection unscrew the hexagonal bolts

the column base (3) with the column

round through
Preferably weigh down the baseboard to prevent the enlarger

from tipping over.

For wall projection release the locking knob
the enlarger head
enlarger head in this position by tightening the locking
knob (22).

Correcting converging verticals

correct

To
you can now
with the enlarging paper in the opposite direction. Stop down
the lens sufficiently
paper area.

Copying

With conversion kits
UNIREPRO
M

670

COlOR

180".

converging verticals release the locking knob (22);

tilt

670)
for

project

Then refit the hexagonal bolts.

(15)

through

the enlarger head. Tilt the masking frame

to

obtain

(Order codes VEGAREPRO and

you can adapt the Durst M

copying.

on the

floor

or

the wall.

(22)

670

(13)

and turn

SW

(2)

and the enlarger head

90"

till it engages. Secure the

an

image sharp over the whole

and turn

or

Durst

22----

11

The VEGAREPRO kit consists

code

(Order
The SIRIOREP

1

(2

12

x 3

SIRIOREP) and the COPYLAM 4 lighting system.

(41)

1

/2

in.) sheet films. For further details see the

takes film holders

of

a copying film holder

for

6.5x9

cm

instructions with the Ourst SIRIOREP copying film holder.

enlargements; by using a more contrasty paper grade you

allow for the lower contrast

of

the M 670 COLOR lighting
system. This has certain advantages: The diffused light
suppresses the effect of dust and scratches and yields
enlargements of a greater tone range.

IMPORTANT: When copying with the Ourst M 670 SW and

Ourst M

670 COLOR you focus and check the field of view

on the baseboard.
The UNIREPRO

670 kit consists of a camera arm

(42)

(Order
code NERIOCAM) and the COPYLAM 4 lighting system. With
this the Ourst M 670

SW

or

Ourst M 670 COLOR can serve as a
copying stand for a normal still camera. Remove the enlarger
head and attach the camera arm to the supporting stud

for

the enlarger head.

The COPY LAM 4 lighting system takes four reflector floodlamps
of

100

or

150 watts (Order code FLU LAM 100

Black·and-white enlargements
Follow this procedure
ment with the Ourst M

for

making a black-and-white enlarge-

670 SW:

with

the Ourst M

or

FLULAM 150).

670

BW

(a) Place the negative in the negative carrier with the

emulsion side

down;
(b) Switch off the room light and switch on the enlarger lamp;
(c) Adjust the magnification and focus the image with the

lens at full aperture;

(d) Stop down the enlarger lens by two stops and swing the

red filter

(e) Insert the paper in the masking frame and

(43)

into the light path;

check

the image
location (the red filter protects normal black-and-white
enlarging papers);

(f) Switch off the enlarger lamp and swing the red filter out of

the way;

(g) Make a test exposure

time. For instance make

16 und

32

sec. with a Ourst test strip holder

to

establish the correct exposure

an

exposure series

of

1,

or

a Ourst

2,

4,

8,

multi-print masking frame;

(h) Process, rinse and dry the test strip. Select the

correct
exposure time from this test and set the exposure time
accordingly.

Note: You can also make black-and-white enlargements with
the Ourst M
The diffused light is equally suitable

670 COLOR by setting all filter dials

for

black-and-white

(44)

to zero.

Note especially that diffused lighting does not affect image
sharpness. For sharpness depends exclusively on the quality

of the negative and of the enlarging lens.

Colour enlargements from
with

the Ourst M

The procedure

a zero correction

670

COLOR

for

making a colour enlargement starts with

print

involving the following steps:

negatives

or

transparencies

colour

(a) Place the film with the emulsion side down in the negative

for

carrier (emulsion side up

enlargements on Kodak

Ektaflex and Agfachrome Speed materials);

(b) Move all

filter

dials to zero;
(c) Switch off the room light and switch on the enlarger lamp;
(d) Select the enlarged image size and focus (with the lens

at full aperture);

(e) Stop down the enlarger lens by two stops (with high-speed

enlarging papers you may have to stop down by three

stops);
(f) Switch off the enlarger lamp;
(g) Establish a correct exposure time by a test exposure

using a series of times (for instance of

32

sec.) with a Ourst test strip holder

1,

2.

4,

8,

or

a Ourst multi-print

16

and

masking frame.
Process, rinse and dry the test strip. Then select the section

with the
time
yields
starting point

Exposure correction

correct

on

the exposure timer. If none

an

exposure time on the strip and set this

of

the test exposures

image of correct density take the best result as the

for

a further exposure correction:

with

colour

negatives
Print too light: Increase exposure time
Print too dark: Reduce exposure time.

with

colour

Exposure correction

transparencies
Print too light: Reduce exposure time
Print too dark: Increase exposure time.
Usually the test print will also show a

colour

cast.

12

42

43--~

You now have to eliminate this colour cast by an appropriate
filter correction. The
colour filters
(1)

Yellow

(2)

Magenta (M)

(3)

Cyan (C).

for

(Y)

colour

this purpose:

mixing head has three built-in

The other three primary colours (red, green and blue) are
obtained by combining two filter colours in the colour mixing
head:
Red: By setting equal values of

yellow and magenta
Green: By setting equal values of yellow and cyan
Blue: By setting equal values
For example:

10

red

10

yellow +

of

cyan and magenta.

10

magenta.

1:

Rule
A

colour

cast in

an

by a

filter

or

enlargement from a negative is removed

filter

combination of the same colour. In

an
enlargement from a positive transparency a cast is removed
by a

filter

Rule

(or combination)

2:

of

the complementary colour.

Excessive correction causes a cast in the complementary
colour; reducing that filtration again restores

3:

Rule

Use only one

or

two, never three filter colours. A third filter

colour

balance.

colour adds grey density which does not modify the filter
effect but only increases the exposure time required.

Before you use these filters
know something of their effect. So remember the following

filter

rules:

Filter correction effects when enlarging

Colour cast in print

Yellow cast
Magenta cast + Magenta
Red cast
Cyan cast Less cyan
Blue cast
Green cast

Filter correction effects in enlargements from positive

Colour cast

in

print

Yellow cast
Magenta cast

or

filter

combinations you must

colour

Required correction on
colour

mixing head

+ Yellow

+

Yellow + magenta

+ Cyan
+ Magenta + cyan
+

Yellow+cyan

Required correction on
colour

mixing head

+ Magenta + cyan

+

Yellow+cyan

negatives

(=

(=green)

colour

(=red)

blue)

transparencies

Rule 4:
The stronger the cast, the higher must
density.

Effect in print

Less yellow Blue cast
Less magenta Green cast
Less red

Less blue Yellow cast
Less green Magenta cast

Effect in print

Less yellow Blue cast

Less magenta Green cast
Red cast + Cyan Less red
Cyan cast

+

Yellow+magenta

Less cyan Red cast
Blue cast + Yellow Less blue
Green cast

+ Magenta Less green

be

the corrective filter

Effect in print of

over-correction

Cyan cast

Red

cast

Effect in print of

over-correction

Cyan cast
Yellow cast

Magenta cast

Cyan

13

Rule

5:

The higher the filter setting, the more the exposure time

increases. This applies especially to magenta and cyan.

Example
New filter settings
Old

If the old exposure time was

filter

2:

settings

20
20

20

seconds, what is the new time?

00 00
10

00

6:

Rule
Preferably mark the
aperture on the back

Rule

7:

Judge the
light sourCe.

Note to Rule
To ensure
increasing the
exposure time
exposure factors listed in the table below, entering them in the
following equation:

T (new)

T (new)
T (old)
(F1 x F2 x F3)

(F1 x F2 x F3)

Filter exposure factors

Filter value Yellow Magenta

Practical examples

colour

correct

00
05
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85

90

95
100
105
110
115
120
125
130

filter

setting, exposure time and lens

of

every test and every print.

effect by daylight

5:

exposure

filter

settings, you have to recalculate the

for

every change in

= T (old)

new exposure time

or

by a daylight-matching

of

subsequent prints after

filter

value. Use the

(F1 x F2 x F3)

x·

(F1 x F2x

= old exposure time

new
old

new exposure factors

= old exposure factors

1.00

1.02

1.04

1.06

1.08

1.10

1.11

1.12

1.13

1.14

1.15

1.16

1.17

1.17

1.18

1.18

1.18

1.19

1.19

1.19

1.20

1.20

1.20

1.21

1.21

1.21

1.21

1.00

1.08

1.15

1.21

1.26

1.31

1.36

1.40

1.44

1.48

1.52

1.56

1.60

1.64

1.68

1.71

1.74

1.77

1.80

1.83

1.86

1.89

1.92

1.95

1.98

2.01

2.04

1=3)

I

new
old

Cyan

1.00

1.06

1.11

1.16

1.20

1.24

1.28

1.31

1.34

1.37

1.40

1.43

1.46

1.49

1.52

1.54

1.56

1.58

1.60

1.62

1.64

1.66

1.68

1.70

1.72

1.74

1.76

In the table look up the filter factors

settings and enter them in the equation:

20 x

T (new)

Note that the magnification must not change while you are
making the filter test. After every change in the filter setting
make a new test print until you have the best
Then make the final enlargement. Using a colour analyser
or

meter greatly simplifies and speeds up this procedure.

Comparison

Kodak/Ciba

50 yellow

50

magenta

50

cyan

Agfa
50

yellow =

50

magenta =

50 cyan

Black-and-white enlargements
with the Durst

With variable-contrast papers you can enlarge all

on a paper of single gradation. The contrast response is
controlled by suitably filtered exposing light. With a yellow

filter the gradation becomes flatter, i.e. the print softer; with

a magenta
more contrasty.

The table below shows the required filter settings to obtain

different equivalent paper grades:

Paper Paper
grade

0

0.5
1

1.5
2

2.5
3

3.5

i

I

4

4.5
5 not possible

Note: The values are a guide only.
With the above filter settings the exposure time is
ically compensated exposures can remain constant.

1.08x1.00X1.00

1.08X1.15x1.00

of

Durst, Kodak, Agfa and Clba filter values

Durst

=

30

yellow

=

30

magenta in colour mixing head

=

30

cyan

Durst

25

yellow in colour mixing head

25

magenta in colour mixing head

=

25

cyan in colour mixing head.

M 670

COlOR

filter

the gradation becomes steeper and the

Filter settings on I IFilter settings on

colour head

I

IIfospeed .

Multigrade

Y M C
92

74

56
46
36

28

20

12

4

-

16
22
28
37
46
53
60
75
90

130

for

-

-

-

-

-

-

-

-

-

-

of

the new and old filter

17.4 sec.

filter

in

colour mixing head

in

colour

mixing head

on

variable-contrast papers

colour

grade

Y M

0

0.5
1

1.5
2

2.5
3

3.5
4 not possible

62
47
32

22

12

not possible

combination.

your

prints

head

Kodak

Polycontrast

6

17
28
41
55

6

85

130

automat-

print

for

C

-

-

-

-

-

-

Example
New
Old

If the old exposure time was

I n the table look up the filter factors
settings and enter them

T (new) T (old) x

14

1:

filter

settings

filter

settings

in

the equation:
(F1 x F2 x F3)
(F1 x F2 x F3)

1.08 x 1.44 x 1

10

x 1.08X1.15X1 = 12.5 sec.

20

20

10

seconds, what is the new time?

40
10

of

the new and old filter

new
old

00

00

Accessories

Durst

If you have a Durst M
to convert it to black-and-white operation, you can use a
VEGAKIT
following items:

~

Condenser lamphouse

- Lamp holder

- Condenser
24X36

- 150 watt opal lamp.

for

M 670

black-and-whlte enlargements with the

COlOR

SW conversion kit (available separately)

for

mm

670

COLOR enlarger and specially want

all film sizes from

13 X 17

mm

of

up to

the

Summary of available accessories
To facilitate conversion

to

colour or black-and-white

or

to alternative film sizes, we list below two system charts with order codes.

Durst M670

(J)

SIVOPAR

26-26X26

(J)

SIVOPAR

16-18X24--@

(J)

SIVOPAR11D-13X17

Spares

@

SIVOGLAAN

®

COLAMPlooS

©

©

d)

UNIREPRO

Cemera

Co!¥ng

670:

adaplet

IIg\lIing

set

COLOR

(J)

I

in

Copy

9

accessories

FLU

LAM

100

FLULAM

150

system

SIOIA

---

SIRIOTUB

39

G)

chart

Accessories
enlargements
transparencies

Accessories
filmssmaller

I

Ihan24x36

T

Disc

for

for

mm

from

Standard

24x36

Basic
colour

Transformer

VQftage

Mixing

Negative

Format

TungsIe11-halogen

lens

U~IDISC

Miscellaneous

@

Accessories
black-and-while

cl

VEGAKIT:

Condenser

~pholder

Qindenser

Opal

for

enlarging

lamphouse

lamp

(2)

Accessories

switching

(2114x2314

(J)

@

mm

ou1Iit

enlarger

with

mixing

head

or

stabiliser

box

carrier

masks

boarl:I

accessories

lamp

I

SIRIOCUF
SINONEG

for

to

617

cm

in.)

SIXMA67
VEGATUB39

I--

__

-'Wall

mounting

accessories

I

~

VEGAWAL

1----

(J)

Accessories

for

rolllilm

a)

VEGACOLSET

Mixing

box

Anli-Newton

Formalmask'

Accessories

tor

enlarging

~

4.5x6

I I

SIVoPAR

45

sizes

6X6

glass

glassless

(J)

SIVOMA

---

66:

6x6

GEl

a)

VEGACOLSET

Mix'

AnIl~glass

6

-­Formalma'lk

XI

Lens

board

Accessories

switching

(21/4x2114

(J)

Accessories

for

~

4.5x6

I I

(J)

SIVOPAR

box

to

6x6

I

SIXMA

I

glassless

enlarging

45

(J)

67:

for

cm

in.)

66

6x6

SIVOMA

66

Durst M670

(J)

SIVOPAR

26-

26X26

(J)

SIVOPAA

18-18X24

(J)

SIVOPAR

llD-13X17

Accessories

colour

b)

coUS

CQIoor

Tfanslorrner

for

enlarging

El70:

mbinghead

BW

system

--@SIRIOTUB39-smallerlhanc----/Negativecarrier

chart

Spares

I

@

SIVOGLAAN

@

DULAMP1SO

Co~I"9

accessoraes

©

FLULAM

150

Accessories
for

films

24x36

mm

Standard

ou1fit:

Basie

Condenser
Condenser

Formal

Lam~fitting

Opal

lamp

Lens

board

Miscellaneous

accessories

<ID

(2)

Accessories

switching

(2114x2

CD

(J)

@

®

24136

mm

enlarger

with

tamphQuse

masks

I

SIRIOCUF

SINONEG

for

to

6x7

cm

314

in.)

I

VEGACON
SIXMA

67
VEGATUB39
VEGAFI

100

I--

__

I-------:

(J)

---'Wall

mounting

accessories

I

~

VEGAWAL

Accessories

rollfilm

sizes---

for

I

4.5x616x6

a1

VEGASET.

Condenser

Anti-Newton

Forrnatmask

/\

4.5x6

I I

SIVOPAR

66:

gtass

Accessories

for

glassless

enlarging

45

(J)

SIVoMA

6x6

66

a)

Condenser

6x7-

Anti-NewiOn

Format

Lens

Filter

swnchlng

/\

T i

(J)

SIVOPAR

VEGASET

67:

glass

mask

board

holder

Accessories

10

6x6

(21i4x2114In.)

I

CD

SIRIOCON
SIXMA

66

I

Accessories

for

glassless

enlarging

45

(J)

for

cm

80

SIVoMA

GEl

Explanations to go with

Condensor
2 Negative carrier 7 Format mask
4 Disc adapter 8 Anti-Newton glass

5 Opal lamp

I

order

codes:

~

Lens board

® Dust cover

@)

Wall mounting

® Tungsten-halogen lamp

@ Copying lamp

@ Filter drawer

Conversion kits:
(a)

Format conversion kits

(b)

Colour kit
(c) Black-and-white kit
(d) Copying kit

15

To

fit

the black-and-white condenser lamphouse on your

Ourst M

670

COlOR,

first remove the negative carrier from
the enlarger head and slack off the two milled screws
below the enlarger head (4). Then remove the

colour

from the enlarger together with the mixing box.

(24)

head

(1S)

Unscrew the milled screw and remove the blanking plate.

(9)

From below insert the lamp holder

(10)

and screw the opal lamp

supplied into the lamp holder (23).

in the enlarger head

Mount the condenser lamphouse over the lower section of
the enlarger head and secure with the two milled screws (24).
Attach the condenser
house by engaging the milled screws

(6)

supplied to the condenser lamp-

(2S)

in the cutouts on

the condenser housing. Secure the two screws.
Push the negative carrier into the enlarger head and plug

the lead

the enlarger into the socket of

an

exposure

of
timer, connecting the latter to the mains supply.
Before enlarging black-and-white films centre the lamp
described

Accessories for colour enlargements with the Ourst M 670 BW

If your enlarger is a Ourst M
your own
scale

for

lamp centering with the Ourst M

colour

colour

films, you can convert the enlarger to a full-

unit with the separate

670

BW and you want

ClS

670

670

conversion kit.

BW.

to

as

enlarge

This kit consists of:

colour

A

- A TRA

- A 100 watt

- A mixing box

To

fit

mixing head

30S

the

ClS

transformer
12

volt tungsten-halogen lamp

for

670

or

EST

30S

films up to

colour

24 x 36

conversion kit on your Ourst M 670

voltage stabiliser

mm.

BW, first remove the negative carrier from the enlarger head.

Then slack
condenser lamphouse

off

the milled screws

(S)

(24)

and remove the

from the lower section of the

enlarger head. Unscrew the opal lamp (10) from the lamp

holder (9). slack off the milled screw

of

fitting out

the enlarger head. Cover up the lamp opening

by fixing the blanking plate from below

(29)

and pull the lamp

so

that no light

can emerge when you use the colour mixing head.

Fit the COLAMP 100 S tungsten-halogen lamp

colour

support

mixing head

(26)

(15)

so

that the lamp is located between its

and the retaining springs

(27)

and

(18)

so

in the

that the

16

----15

-----26
27

spigot

on the lamp reflector

Correct

seating

of

the lamp in the lamp

points

down and engages.

holder

is important
as this automatically centres the lamp and ensures even
illumination. Never
reflector (28) with

Place the

colour

enlarger head and secure with the two milled screws

Fit the mixing box (17)

mixing

head with

touch

the

your

inside surface

fingers.

mixing head complete with

the

supplied

two

milled screws (25). Slack off the

underneath the

of

the lamp

lamp

over the

(24).

colour

screws. insert the mixing box with its two cutouts under
screws (25) and secure the latter.

carrier

Push the negative

into the

the enlarger head. plug the lead

socket

of

the

into the
plug

the

latter

transformer

into an exposure timer.

opening

from

the

or

voltage

provided
colour

stabiliser

for

mixing head

the

it on

and

Black-and-white conversion kit for enlarging 6 x 7
with the

To enlarge
you need a speCial conversion
available separately). consisting

-

- Lens tube

-

- Extensive arm
With this conversion

an anti-Newton coated glass in
mask in the bottom
If
and

(2

in the

Note: When you enlarge

replace

Insert
as
To
special 6 X 7

Ourst

M 670

BW

1

6X7

cm (2

Double
Upper
Lower

Filter

condenser
anti-Newton coated negative
glassless metal mask

to

take a

drawer

with two glasses

for

3

/.

X 2

/.

in.) films in
kit

(Order code VEGASET 67.

of

the

for

6 x 7 cm films

for

100/105

red

filter

kit

you can enlarge 6 X 7

6X7

mm lens

holder.

carrier

the top

of

you have the VEGASET 67 conversion

want

to

1

/.

X 2

to

use a red

enlarge

1

/.

in.) films, you need

chart

on page 15.

the

standard

the

VEGATUS

bring

the

filter

cm

the negative carrier.

4.5x6

6X7

filter

39

lens tube into the lens

lens nearer

3

cm

(1

/.X2

the

.further accessories listed

cm films in

drawer

by that

to

the

projection

replace the standard red

red

filter

holder

(45).

the

Ourst M 670 SW

following:

glass

cm film

cm

and a glassless format

kit

for

1

/.

in.) and

the

Ourst M 670 SW.

of

the VEGASET 67.

carrier

plane.

filter

cm

films

films. using

6 X 7 cm films

6X6

cm

so

holder

by

the

17

To do this, first remove the standard red

unscrewing
holder

with a screw

on the lens

carrier

driver, then
with

the

milled

fit

filter

holder

the 6 x 7 cm red

screw

by

(46) supplied.

filter

Black-and-white
the Ourst M 670 BW

conversion

A
separately
the Durst M

Condenser

-

-

Upper

- Glassless mask
this

With
an anti-Newton coated glass in the top and a glassless
format

mask in the bottom
If you have the VEGASET
and plan to enlarge also
the

further

Colour

conversion
Ourst M
A
is available separately to
enlarger

-

-

-

-

- Extensive arm
With

an
and a glassless

If

films

and

system

670

special

Mixing
Upper

lower

lens

tube

this

anti-Newton coated glass on the top of the negative

you have the

and plan

21/4 X 21/4

chart

conversion

kit

(Order

for

enlarging

670 BW.

for

negative

to handle 6 X 7 cm films. It consists of:

negative
glassless

6 X 6 cm films

carrier

for

conversion kit you can enlarge 6 X 6 cm films using

accessories listed in the system

kit

COlOR

conversion kit (Order

box

for

6x6

carrier

format

to

fit

100/105

for

conversion kit you can enlarge 6 X 7 cm films

format

VEGACOlSET

to

enlarge also

in.) films, you need the accessories listed in the

on

page

kit

for

enlarging

code

VEGASET 66) is available

6 X 6 cm

The

kit consists of:

glass

6 X 6 cm film.

(21/4 X 21/4

with

anti-Newton coating

of

the negative carrier.

66 conversion kit

4.5x6

and

6x7

for

enlarging

convert

and

6x7

glass with anti-Newton coating

masks

mm lenses

diffuser

mask in the bottom.

6 X 7 cm films

code

the basic Durst M 670

cm films

for

6 X 7 cm films

holder.

6 X 6

in.)

for

cm films you need

chart

VEGACOlSET

67 conversion kit

4.5x6

and

6X6

15.

cm

films

films

with

6 X 6 cm

on page 15.

with

67)

for

6 X 7 cm

cm

(1 3/4X21/4

with

films

the

COlOR

with

carrier

NOTE:

Insert
so as to
To use
filter

holder
first remove the standard red
driver
carrier

Colour
Ourst M 670
A

special
available separately to
to

enlarge

-

Mixing

-

Upper
lower

­With this conversion kit you can

anti-Newton coated glass in the top and a glassless
mask in the bottom of the negative carrier.
If

you have a

enlarge

to
accessories listed in the system

Accessories

following

The
films

smaller

or

M 670

- A

pair

- A pair

- A pair of SIVOPAR

- A SIRIOTUB 39 lens

the VEGATUB 39 lens

bring

the lens nearer to the

the

red

filter

by the 6 X7 cm red

and then

with

the

conversion

COlOR

conversion kit (Order

6 X 6 cm films. It consists

box

negative

glassless format masks

also 4.5 X 6 and 6 X 7 cm films, you

for

COlOR

of

SIVOPAR 26 masks

of

SIVOPAR 18 masks

(and diffuser) replace the standard red

fix

the 6 X 7 cm red

milled

screw

kit

for

enlarging

convert

for

6 X 6 and 6 X 7 cm

carrier

glass

VEGACOlSET

film

sizes

accessories are available separately

than

24X36

enlarger:

smaller

mm with the basic Durst M 670 BW

110 masks

tube

to take a 35 mm lens.

tube

into the lens

projection

filter

holder

filter

holder

filter

(45). To do this,

with a

holder on the lens

(46) supplied.

6 X 7

cm

films

code

VEGACOlSET

the basic Durst M 670

of:

films

with

anti-Newton coating

for

6 X 6 cm films.

enlarge

66 kit

for
for

for

6 X 6 cm

for

6 X 6 cm films and plan

chart

than

26X26

18X24

enlarging

will

on page 15.

24

X

36

mm films

mm films

13x17

plane.

mm

carrier

screw

with

the

66) is
COlOR

with

an

format

need the

for

enlarging

mm

films

18

IMPORTANT: Mount the SIRIOTUS

carrier so

Accessories for enlarging disc films with the Durst

M

670

To

COLOR

enlarge

as

to bring the lens nearer to the film plane.

disc

films you need the Ourst UNIOISC disc

39

lens tube on the lens

adapter (available separately) which is mounted on the lens

of

carrier in place
To ensure even illumination

the lens board.

of

the projected image remove
any glass and metal format masks from the standard negative
carrier. For further handling notes see the instructions

disc

enclosed with the Ourst UNIDISC
The maximum magnification with the UNIOISC is
the minimum magnification 3

Accessories for enlarging transparencies with the Durst

M

670

COLOR

X.

adapter.

31

x linear,

A special mask for mounted miniature slides (Order code

24x36

SIOIA) is available separately for enlarging framed
slides

in

mask fits in the negative carrier

the standard Ourst M

mask. Remove the upper format mask

670

COlOR

in

place of the lower format

enlarger. The

or

upper negative

mm

carrier glass.

Miscellaneous accessories

A universal negative carrier (Order code SINONEG) is avail­able separately and fits the enlarger
negative carrier supplied with the Ourst M
M

670

COlOR.

and glassless masks

This special carrier takes the same glasses

as

the standard negative carrier for

enlarging different film sizes.

in

place

of

the standard

670

SW

or

In

addition, this negative carrier

has individually adjustable masking strips to mask down the

requ:red negative area and guide pins for special super-

or

imposition

combination-printing applications.

A special wall mounting unit (Order code VEGAWAl) is

670

available separately to mount the Ourst M

on the wall.

Oust is the greatest enemy of enlargements. When you are not

it

actually using the enlarger, preferably store

or

cover

it

closed cupboard

with the dust cover (Order

either in a

code SIRIOCUF).

Care and maintenance

The Ourst M

670

SW

and M 670

COlOR

are designed to

need minimum maintenance.

If the lens carrier slips during focusing, clean the guide rod of
the friction drive with alcohol and then lubricate it with a
trace of mineral oil.

IMPORTANT:

Before changing the lamp In the enlarger head or before any

other internal adjustment

is

disconnected from the mains supply.

unit

Ours! products are being constantly developed to the latest state

art. Illustrations and descriptions are therefore subject

to

the enlarger check first that the

to

modification.

of

the