LEITZ Leica IIIa User manual

for single (sti[ )
Ir'bica
Carnera
Model llla
pictures on standard
filrn strips
z4le
1517
l19 lZl
16
20
Fig. I
1.
The external parts of the Leica
camera
l. Winding knob for simultaneous winding of film and
setting of shutter. - -o
2' counting disc, automaticaily recording the number of
exposures.
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cinernatograph
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3. One of the two lugs by means of which the counting disc
is turned anti-clockwise and against the direction of the
arrow on the winding knob for zero setting.
4, Counting An'ow, indicating the nurnber of photographs
taken.
5. Press Button, to which may be screwed a Wire Release
(after the milled protective ring has been removed).
6. Reversing Lever for engaging (towards A) and disengaging
(towards R,) the automat,ic coupling of film advance and
shutter mechanism before and after exposures have been
made (before re-winding film).
7. Shuttor-speed Dial, for adjustment, of speed required (to
be set, after winding of shutter) - See (f).
7a. Adjusting dial for the slow instantaneous speeds fr.om
l-1/, sec.
8. Index Arrow, for figures of Speed Dial (Z).
9. CIip, to hold Universal View-finder, etc.
10. View-finder showing size of image.
t 1. The two Object Glasses of the Range Finder, the mechanism
of which is interconnected with the focusins mount, of the
lens.
12. Back-winding l(nob (extensible) to wind the film back
into spool chamber after exposure.
13. Camera Lid.
14. Pin over which the camera lid is hooked at, one end. (See
also 23.)
15. Lens changing flange for interchange of Leica lenses of
various focal lengths.
16. Distance Scale. (Not visible.)
17. Lens focusing lever with catch for infinity, actuating the
adjustment of range finder and focusing of lens simul-
taneously (index not visible in illustration).
Depth of focus collar. (Scale not visible, see Fig. f
.)
Tubular Socket, of Lens, to be pulled out for photo-
graphing, when the lens is locked in a bayonet catch by
turning it to the right (clockwise).
Ring or lever with index line for adjusting aperture.
Front of lens mount,.
Swivel (not visible) for opening and closing camera lid
(see
Fig. 2).
I
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i
I
I
i
I
I
I
\l
19.
20.
2t.
22.
23.
-Z
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2.
Opening the Leica Camera
,,14*
T'tg. 2
Turn the _camera upside down and open lid 13 by raising
swrvel 23 a\d turling same frorn "closedr' t,o "open" "as far as
it will go. Lift lid and then unhook at, pin 14:
B
BB
gs 87
Fig. 3
The interior then presents the appearanee as shown in
F
ig. 3. Now withdraw the spool cham6ei B hy the milled knob
5
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B. The Leic,,a
fspool
Chamber Model
1. Its Components
g 7 B6
B
B3
The Leica Charnber Model B
consist,s
of three components: the
shell B', and the cent,re spool B3.
82
Fig. 4 and 5
B - Complete Spool
81 - Outer Shell
82 _- Inner Shell
B3 - Cent,re Spool
B 4 - Slot of Centre
85 - Milled l(nob of
B 6 - Slots of Spool
B7 - I(nob of Spool
88 - Safety Spring
Chamber Model B
Spool
Centre Spool
Chamber
Chamber
is of cylind.r'ical form and
Outer shell B 1, the fnner
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Th", guide-groove on the inner shell and the pin inside the
out'er shell (oppgsite_ the safety spring, which is Lot .risinte i1
illustratlol) m-aXe the openidg and "closing- of the charrrber,
mechanical.
Fig. 6. Leica spool chamber Mocler
B open
As will be seen
in the illustration, tr'ig.
6, the guid,e-groove
first runs along the inner shell and then Te"-inad- ilaosemi-
circle at the upper "iot of the shell. The guide-pir ofTn" outer
shell then constrains the inner shell to be"mo.r"'d "fotrg lle slot
in the required manner, thus:
l. Int,roduce the inner shell with spool in the outer shell
until its rim comes.to a.gtop, thd slot openincJ neirg
then one above the othei;
2. Turn inner shell to the left (anti-clockwise ) up to
the limit stop, when the safety ipring will th;6ngu,g".
,. ^ .Agaip, the chamber can olly be opened by first slightly
tif,ting !h" safety- spring,, turnin[ the iirner sfr"if il-;il-?ight
(clockwise), and then wilhdrawinlg it, i.e. by going throueh the
same process in exactly the reverse order". fs"""Fig. z
j lr;-
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Loading Spool Champer Model
by subdued daylight
(Daylight loading filrn spools )
Fig. 7. I{ow the spool chamber B should be opened
Open Spool Chamber. To this end release with the index
finger of the left, hand the safety spring B 8 by pulling it
backwards (Fig. 7) and turn the inner shell with the right
hand at the knob towards the right (clockwise), to the end
of the movement. Then withdraw inner shell.
Remove the cent're spool from the inner shell and keep it
as it is only required for darkroom loading.
B
2.
l.
.)
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BB----->
3.
tr'ig.
8
I_nsert daylight loading film spool into
the milled knob first, and so that the
the inner shell with
seal lies in the slot,.
4.
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Fig. 10
5. Close spool chamber by giving the inner shell half a turn to
the left, when the safety spring wiII engage at the rnark Z;
now withdraw the paper strip only, holding the film so that,
it does not, come out, together with the paper.
6. If the loaded chamber is not to be used in the camera imme-
diately, it should be kept in the aluminium container so
that it is not exposed to daylight too long. With highly
sensitive Leica films the projecting beginning of the film
conducts the light into the spool chamber and thus causes
fogging. This is not the case with backed films or films
having an intermediate layer against halo. For this reason
we particularly commend these brands.
Daylight loading Leica films are supplied by Mimosa and
Gevaert, each spool containing a, film strip 5'l n ft. long,
sufficient, for 36 exposures of the Leica size 24 X 36 mm.
Il,e Agfa and Perutz Leica cartridges see below.
Loading of camera, exposures and unloadin$ of
camera, see pages 15-19.
3. The Leica sarttidges
for daylight loading and unloadin$
The Leica spool chamber Model B ,*a,y be loaded into
the camera in daylight and rnay also be removed in dry-
light, but the film cannot be taken out of the spool chamber
10
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in, daylight, so that in special circumstances one may need
a larger n-umper of spool charnbers in ord.er to avoid unl"oading
them in the darkroom.
In such cases, the Leica cartrid.ges of Messrs. Agfa, Gev aert,
Hauff, I(odak and Perutz provide a"satisfacto"y *oi'otion. These
fit3*,supply t4gir films. in special Leica car"tridges for d*y-
ligrt-t loadi_ng. Thg cartridg" .i. used once only aila is openecl
in the darkroom for developing the film.
The loading. of !h" Leica cartridges into the camera, and
also the unloading, is-done in the sant_e
way as a loaded spool
chamber Model B. tr'or further details *"6 pages lb-lg:
Please note. Leica cameras which are not yet equipped
with the lock v2 (see Fig. lJ I must, have this frart rittea if
the Leica eart,ridges are io be used.
Fig. I I
D
v2
1l
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l.
4. Loading of Film Chamber Model B
in the darkroom
(In this case darkroom loading film spools are used)
Fig. L2
I{ow the spool chamber Model B should be opened
Open spool chamber. To this end release with the index
finger of the left hand the safety spring B 8 by pulling it
backwards (Fig. 12) and turn the inner shell with the right
hand at the knob towards the right (clockwise) to the end
of the movement,. Then withdraw inner shell.
Remove the cent,re spool from the inner shell. Ta$e the
wrapping off the film.
()
T2
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