Leitz Wetzlar Focomat IIc Instructions for use

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Instructions for use
ERNST LET 2 GMBH WETZLAR
CG ERMAN Y)
17-8 / Engl.
E RN: SI
The FOCOMAT llc is an enlarger with
automatic focusing for all negative sizes
up to 6x? cm., meeting the most exact-
ing demands in design, reliability and
operating comfort,
ETA FOCOMAT lle
The following instructions for use contain
all details about the various possibilities
of application and adability for mini-
ature to medium size negatives. Chang-
ing over from miniature to medium size
negatives, fitting accessories for the
correction of converging verticals or
photo copying is a matter of seconds.
This versatile application, together with
simplicity and speed of operation
make the FOCOMAT Il c a particularly
economical enlarger for the professional
darkroom.
EE 11 MIN WEYTZLAR
(GERMANY)
Branch Works: Ernst Leitz (Canada) Ltd., Midland, Ontario
[ 17-87 Engl. |
1757 /DX
Printed in Germany Arthur Leipscher, Wetzlar
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6944 - 17
Letters
Numbers
For transport, the LEITZ ГОСОМАТ И с Enlarger is dismantled
as follows:
Baseboard
Column with foot, ring for vertical adjustment and threaded collar
Parallelogram arms with counterbalancing springs
Lamp housing
Condenser
Film trays
Bowden cable for automatic cam change and negative masks
Film holder
Any additional accessories
denote features of the general views on pages 3 and 22.
denote details of parts shown in the remainder
of the illustrations in the instructions for use
Assembly
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7048-17 |
A
Baseboard (K)
Remove the cover of the clamping bar of the electric cables on the lower side of
the baseboard (Fig. 1). Mount the column B and thread the end of the cable pro-
truding from it through the hole in the baseboard. Secure the column well with
the four hexagonal bolts supplied. (Their washers must be inserted between base-
board and screwheads).
The cables must be connected according to the wiring plan inside the cover.
Replace cover. Connect earth wire on column flange with red screw.
A mechanical exposure timer; which must be short circuited on the back with a
short circuit plug can be connected to the socket (W) in the baseboard.
The FOCOMAT Il c is switched on and off by the hand switch (M) (with protective
collar) on the left of the baseboard. Hand switch and exposure timer can be
used independently. Where a dimmer switch is installed illumination for focusing
is switched on by hand, and for exposure by the exposure timer.
Parallelogram
Guide Linkage (D)
Turn the threaded collar (U/3) on the
column (B/4) downwards until it rests on
the ring for the vertical adjustment (V/5).
Remove the three screws from the
threaded collar, and also the red screw
between the two guide pins of the film
stage. Remove the wooden block which
is fitted during transit and slowly lower
the lens carrier to the stop (9). (The red
screw secures and takes the strain of
the lens sliding changer during transit).
Push lever (7) on the clamping device
upwards and push the parallelogram
arms on to the column until they rest on
the threaded collar. In this position the
three screws are replaced and tightened.
Fig. 2
Counterbalancing springs (T)
Push the lamp housing up to its highest position and tighten locking head firmly.
Pull lever (7) downwards; this secures the parallelogram arms against accidental
rotation. Insert the counterbalancing springs (1/8) to the right and left of the
parallelogram arms in the notches of the rear pivot (9). After loosening locking
head pull parallelogram arms to their lowest position, where they are locked
again. Support lens carrier (F) from below to protect it against dropping.
Lamp housing (C)
Push the lamp housing (C) on to the two guide pins (Figs. 3, 10 and 11) against
the stop and arrest with locking screw (0/12). Remove the upper lamp hood, and
insert the condenser by means of its handle. The handle of the condenser must
point towards the column and is hinged back after inserting of the condenser.
Screw in opal lamp, and replace upper lamp hood (white mark facing front).
13 у
6947 5-17
Film trays (P/13)
Undo locking screws
(14 — Fig. 4) to the right
and left of the negative
stage a little, push film
trays underneath the
screw heads, and
tighten screws again.
Fig. 4
6948-17
Fig. 5
7 ооо
Bowden Cable (l) for automatic cam change
Screw first the Bowden cable (15 — Fig. 5), then
the protecting sleeve (16) into the guide lever.
Insert the other end of the Bowden cable into
the lens guide where it is secured with a knurled
screw.
Lamp Hood (C)
Insert sprung cable holder (A) into the hole at the
end of the column. Thread cable from the lamp
hood through the loop of the cable holder and
insert plug into the socket at the top end of the
column. Connect the instrument to the mains.
Attention! The FOCOMAT llc is only earthed
correctly if it is connected to a German SCHUKO
socket installed according to regulations; or else
if the “red” wire is connected to a suitable three
pin plug which fits to an earthed socket.
Fig. 6
a E E
Enlargement indicator (J) with trans-illuminated scale
Pull enlarger head down to its lowest position. Push the protruding pointer spindle
(20) of the enlargement indicator into the hole of the lever shaft (21). Take care
that the pin protruding from the parallelogram guide engages the pointer (23).
Secure the scale housing with its two screws on the holding device.
The twin plug (N) supplied is inserted in the end of the column; it serves to connect
enlargement indicator and enlarger head.
The enlargement indicator is equipped with an indicator lamp (CKROO). To replace
the lamp, remove its socket after loosening two knurled screws (24).
Ring for vertical adjustment (V)
The numbers on the ring for the vertical adjustment indicate the different heights
of the various masking boards; they can also be referred to for copying work if
the object is held in a masking board.
The standard height of LEITZ masking boards with grooves (for use with the
clamping device) is 25 mm.; the 30x 40 cm. masking board is 30 mm high.
The zero mark refers to the surface of the base board.
To set the ring for vertical adjustment, release clamping lever (upward position), and
slightly raise the enlarger head on the column by means of the threaded collar (U).
Turn the vertical adapter ring according to the height of the enlarging board
used, and set the parallelogram arms with the threaded collar to their lowest
position. Tighten clamping lever.
Masking Board (X)
By means of the clamping device (L) the masking board can be clamped on the
base board in any desired position.
Upward position of lever = masking board can be moved freely
Lower position of lever = masking board is clamped.
Opal lamp
To centre the lamp set the enlarger head to medium height, and use the 95 mm
lens. By rotating the guide sleeve (25 — Fig. 7) and laterally adjusting by means
of the three centring screws (26) the opal lamp is brought into a position when it
evenly illuminates a picture frame for the 6 x9 cm negative size. The lamp should
be set as low as possible.
10
Operation
Enlarging range
The desired ratio of enlarging is obtained by vertical adjustment of the enlarger
head on the parallelogram arms. The ratio of enlargement can be read off the
scale (Q/27) at any time.
To move the enlarger
head the locking knob (S)
on the right hand side 1s
XT undone, and the enlarger
head pushed vp and
down with the red
handle (H) on the left.
The focusing is automatic
throughout the entire
range of movement. With
por ч the aid of the guide
cams (G) the lenses are
adjusted in the Works
for optimum sharpness
and must not be inter-
changed. Automatic foc-
using is also guaranteed
when the copying
cassette is used in the
- a FOCOMAT llc. Range of
a: À automatic focusing: —
A For 35 mm size negatives
with 60 mm FOCOTAR
lens from approximately
2 x=11x, for medium |
size negatives with 95 mm
FOCOTAR lens from
approximately 1.3 х- 6х
(s. also section “Copying”).
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70500-17
1
Lens change
The 60 mm FOCOTAR f/4.5 (28) and 95 mm FOCOTAR
f/4.5 (29) special enlarging lenses are placed in their oper-
ating positions according to the guide arrows (30) on the
front panel of the lens carrier (sliding changer). The follow-
ing movements must be carried out: — Lift the lens carrier
by the handle (31) to the stop, press locking lever (32), push
the lens slide to the right or left up to the stop, release
locking lever and slowly lower the lens slide again. (The
hand remains on the handle to protect the lens slide
against sudden impact).
The lens mount of the 95 mm FOCOTAR has two setting
notches; the right one, marked R (Repro = copying) is used
with the copying cassette ; when a copying cassette is order-
ed together with the instrument, it is adjusted for optimum
sharpness in the Works. When changing over to the copying
cassette the enclarging lens is to be turned by approxima-
tely one complete turn into its mount until it sets in the
second notch. :
The first setting notch on the 95 mm FOCOTAR (the sett-
ing notch on the 60 mm FOCOTAR respectively) is used
with the negative film holders. The film guides are ad-
justed for an optically effective focusing plane.
For cleaning purposes the lenses may be unscrewed from
their helical focusing mounts. The helical mount is gripped
round the knurled chromium ring with the left hand.
12
6947a-17
37
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Negative film
holder (E)
Film stops
Knurled
head (37)
Orange filter
Fig. Ÿ
For negatives up to 6x 9 cm and single negatives the negative holder
with upper and lower glass plate is used, with a clear opening of
6x9 cm. For miniature strips, the negative film holder with glass pressure
plate from one side can be used. The negative masks (33) are inserted
from the front into the special recess provided in the film holder. Care
should be taken that the longitudinal ridges impressed on the masks point
upwards. The handlebar (34) must be turned upwards during the insertion
of the film strips.
Both film holders are pulled out to the stop. By pulling the two levers (35)
forward, the stops can be withdrawn, so that the negative holder can
be removed from the FOCOMAT.
Interchangeable negative masks are available in the following sizes:
24x24 mm 3x4 cm 4х 6.5 ст
24x36 mm 4х 4 ст 6x6 cm
4.5x6 cm |
Rotatable stop discs (36) are located on the left and right of the film stage.
Their notches align 35 mm, 45 mm and 62 mm wide films.
The knurled head disconnects the automatic focusing mechanism during
the use of the tilting device (see page 17).
If required, an orange filter (38) can be screwed into the thread (39) on
the front of the lens carrier (S); it can be adjusted vertically. To attach
it the 60 mm FOCOTAR should be in its operating position.
13
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6949 à - 17
Light box (Y)
The light box of the
FOCOMAT llc is used
for the easy alignment
of single negatives in the
negative holder (Fig. 10).
The illumination is auto-
matically switched on
and off when the light
box is pulled forward
and replaced.
The negative holder is
placed on the light box
where it is locked in the
correct position (Fig. 11).
After the frame is opened
the negative is inserted 6953517
and aligned in the nega-
tive mask, when the Fig. 11
negative holder is closed
and inserted in the film stage. The position of the negative remains unchanged.
To replace the lamp in the light box the slide underneath is removed after un-
doing the lateral screw. A pearshaped Osram bulb E 14/15 W should be used
(Please state voltage).
Negative mask container (Z)
For easier handling the negative masks should be arranged in their container so
that the white hand ridges are staggered.
14
Copying
To insert the plate (6.5x9 cm or 7 x7 cm size) the clamping bar (41) of the copying
cassette is pulled forward, the cassette lid (42) opened, the plate inserted in the
darkroom, and the lid closed and locked. Close the cassette slide.
Where sheet film is used, the pressure plate supplied (43) must be placed over the film.
xl 41 46
Insertion of the loaded cassette Fig. 12
Release the locking screw (O), raise the lamp house to the indicator mark (Fig. 3)
on the guide pin (10) and arrest it there. Pull out the strip exposure slide of the
test plate (44). Insert copying cassette into film stage as far as possible, engage
95 mm FOCOTAR in locking catch R (this requires a full clockwise turnl); set vertical
adapter ring (V) at “Repro” (thereby automatic focusing will operate throughout
the entire range of adjustment). The locking catch “R” of the 95 mm FOCOTAR
must be aligned in the event of subsequent purchase of the copying cassette. After
disengaging the catch (45) push the test plate for the projection of the negative
sizes into light path until it is locked. Adjust for size by moving the enlarger head.
The fields marked correspond to the following negative sizes: — 54 x 54 mm,
32x 45 mm (microfilm size), 24 x 36 mm, and 59 x 84 mm for the 6.5x9 cm plate
with a 3 mm rebate.
For the exposure, move the cassette carrier towards the left until it is locked,
pull out the cassette slide (46) by the handle to the stop, expose and close the
cassette slide.
15
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Light shield for reflecting surfaces
To eliminate reflections, the light shield (47) is screwed on to the lens carrier (see
attachment of orange filter) and suspended from the hexagonal screws of the
lower parallelogram arm (48 — Fig. 13) by its loops.
16
Colour enlargements
70510-17 Fig. 14
The filter drawer has been designed for the use of 12x 12 cm correction filters for
colour enlargements according to the negative — positive process; it is inserted in
the lower lamp hood in the place of the light-tight cap. The lifting device (49)
facilitates the removal of the correction filters.
The filter drawer is protected against accidental removal by means of a locking
catch (50) on the guide rod (31); for complete removal this has to be pushed into
the guide rod.
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6954-17 N
The tilting device of the FOCOMAT Il € consists of a film holder tilting device (52),
lower (53) and upper (54) bellows, a double glass plate as film holder (55) and
an angle joint (56 — Fig. 16) with base plate.
17
Insertion of the tilting device for the film holder
Unscrew clamping screw (O), lift lamp housing to the end of the guide pin (10 - Fig. 3)
and lock in this position. Place the tilting device for the film holder (52) over the cat-
ches on either side of the lamp housing, securing it with the two knurled screws (57).
Insert the upper bellows
(54 — Fig. 15) so that the
bellows frame rests in the
two slots at the back of the
lamp housing and engages
the cast piece with both
catches. Push the lower
bellows (53 — Fig. 15) into
the film stage until it snaps
into position; insert the
double glass plate
(55 — Fig. 15) between the
upper and lower bellows
so that it is clamped on
either side of the two
holders. With the aid of
the threaded collar, raise
the enlarger head to the
black indicator mark on
the column where it
should be locked. Dis-
connect the automatic
focusing mechanism as
follows. Pull out knurled
head (37 — Fig. 9), give
it half a clockwise or
anti-clockwise turn. Three
grooves permit fixing the
lens carrier (F) at three
different heights; by ad-
justing it, it can be arrested
at any of these three
positions.
18
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6945a-17
The final focusing is carried out manually by the knurled lens focusing ring
(51 — Fig. 16).
The base plate with angle joint (56) must be placed and clamped on the base
board like a masking board, which in turn is pushed with its groove on to the
dovetail of the tilting joint and clamped with knurled nut.
Operating
the Tilting device
Insert negative, emulsion
side down in the double
glass plate. Replace double
glass plate (see page 18).
The tilting device for the
| | film holder can be adjust-
3 ed on all sides by means
of its lateral knurled nuts
until the converging verti-
— Plone of ig cals run parallel on the
S9otive |
paper enlargement or
main plane of the lens a ¿
===> Masking board. Ac-
cording to the diagram
the masking board must
be tilted in the opposite
direction to the slope of the
negative. The inclinations
of masking board and
negative are correct if
uniform sharpness prevails
over the entire image
with the lines running
parallel at full lens aper-
Fig. 17
| р ture. The lens is now set
e for optimum focus and
ERNST LEITZ GMBH WETZLAR 4820-17 stopped down as usual.
19
Enlargements
outside
the automatic
focusing range
The focusing range of the FOCOMAT llc can be extended by manual setting. If
the enlarger head is raised to the upper end of the column by means of the
threaded collar, enlargement ratios up to 9.3x and 16x respectively are pos-
sible. These ratios can be further extended if after weighting the baseboard the
enlarger head is swung through 180°, and the negative projected on the floor.
The following reproduction ratios can be obtained by manual setting in the range
below 1.3x and 2x enlargement respectively: —
If a REPRO adaptor ring (ROOYH) is screwed on to the 95 mm FOCOTAR same-
size reproduction is possible for the full 6x9 cm negative size. Any intermediate
size up to the beginning of the automatic focusing range (1.3x) can of course
be obtained.
If the 60 mm FOCOTAR is screwed into the helical mount of the 95 mm lens together
with an adaptor ring (height 44 mm, RMOOW), even reductions down to 1:25
can be produced, i. e. the 6x9 cm-size negative can be reduced to 24 x 36 mm.
20
Care and maintenance
To protect the FOCOMAT ll c against dust it should be covered with an American
cloth or plastic dust sheet when not in use.
During daily use the condenser should be cleaned once a week at least; remove
lamp hood, take out condenser by its handle, and clean with a soft piece of
chamois or linen. Re-insert the condenser with its handle pointing towards the
column. Turn handle down. Replace lamp hood with the white dot facing front.
The rear components of the lenses should also be cleaned occasionally, preferably
with a soft brush. The lenses may be removed from their helical mounts. The
helical mount is held with the left hand by the knurled chromium ring, and the
lens unscrewed with the right hand.
Care should be taken that the 60 mm FOCOTAR lens is always screwed in the
right-hand mount (seen from the front) of the sliding changer.
The surface of the pressure plate for negative films should be cleaned frequently
during use. Here, too, a broad, soft hair brush is preferable; it should be stored
in a plastic dust cover.
The lateral film trays should be kept scrupulously clean.
All shiny metal parts should be covered with a very thin layer of Vaseline from
time to time.
Lubrication: — Use pure sewing machine oil only and oil at the nipples marke red.
In case of damage
In case the FOCOMAT has been damaged and is in need of repair, the instrument
can be easily dismantled according to the instructions contained in the section
“Assembly” for dispatch to our works and should be carefully packed.
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