Praktica LLC User manual

1. Knob for setting the
shutter speeds

2. Winding the lever for
delayed-action release

3. Delayed-action
release knob ;

4. Shutter release -A

5. Rewind knob

6. Rewind crank

7. Accessory shoe 2

8. Center flash contact





9. Exposure speed index

10. Film speed scales

11. Film speed index

12. Rapid winding lever

13. Exposure counter

14. Distance setting ring

15. Diaphragm setting ring

16. Selector ring for
automatic exposure control

17. Symbols for measuring at
full aperture or taking
aperture

18. Rewind catch

19. Cartridge chamber

20. Supporting piece

21. Marking point for
inserting the film





22. Film transport sprocket

23. Wire bracket

24. Metal-blade focal - plane
shutter

25. Ocular mount with fitting
for accessories

26. Rewind release knob

27. Battery compartment
with PX 21 battery

28. Tripod socket

29. Take-up spool

30. Manual stop down key

31. Depth-of-field scale

We are very pleased that you have chosen the high quality PRAKTICA LLC, and we wish you every success in
working with this modern reflex camera. Before using your camera, however, we would request you to read
these Instructions for Use very carefully. This will help you to avoid errors or trouble caused by wrong
handling.

The PRAKTICA LLC is a miniature single-lens reflex camera for the 24x36 mm picture format. Its novel type
of steel-blade focal-plane shutter, which travels across the shorter side of the frame, has a range of speeds from
1 sec. to 1/1000 sec. and B.
It is synchronized for the use of flash bulbs and electronic flash units. As a result of the rapidly moving steel
curtains, the electronic flash can be synchronized at 1/125 sec. The center contact in the accessory shoe makes it
possible to connect camera and flash unit without using a cable.
The pentaprism is firmly built in, and the focusing system, due to its Fresnel lens, reveals a finder image of
maximum corner to-corner brightness. The microprism screen and a circular ground glass area assure quick and
perfect sharp focusing.
For use as interchangeable lens systems, the well-known PRAKTICA lenses are available. Up to a focal length
of 180 mm they have automatic diaphragm control. In connection with the automatic mechanism in the camera
they function as spring-diaphragm lenses, which means that the diaphragm closes within the shortest time and
opens again immediately after the shutter has run down. Through the instant return mirror the image is visible
practically all the time, except for the short moment of the exposure.
The distinctive feature of the PRAKTICA LLC is the novel type of automatic exposure control with through-
the-lens metering.
The method of light metering is partially integral. The principal metering point is concentrated within an area of
approximately 20 mm in diameter in the center of the viewfinder field. The readings are thus true to reality,
since this area, for the greater majority of objects, includes the details of uppermost importance to the picture.
All subordinate parts of the object outside of this section of the image are photometrically of less value and
cannot influence the reading.

Metering is performed with the taking lens at full aperture, which means that the viewfinder image is always at
its maximum brightness. In the PRAKTICA LLC the diaphragm values are transferred from lens to camera
electrically, without requiring any mechanical device. Also in connection with intermediate rings adapted for
electric transmission, this modern method of light metering at full aperture can be employed.
Due to the special type of bridge circuit, the reading is not affected by any variation in voltage of the power
source.
But also all the PRAKTICA lenses without electric transmission of the diaphragm values may be used thanks to
the possibility of readjusting the light meter for measuring with the lens at taking aperture.
The PRAKTICA LLC is also equipped with a delayed-action device.


ABRIDGED INSTRUCTIONS

For further details please turn the page.

A. Opening the camera back. Pull out rewind knob (5) as far as it will go.

B. Inserting the film
Place film cartridge into cartridge chamber (19), push in rewind knob (5). Slant the beginning of the film and
push it from above as far as it will go underneath the supporting piece (20) and over the transport sprocket (22).
Bring the beginning of the film strip onto the core of the take-up spool (29) and to its green marking point (21).
Wire bracket (23) of the take-up spool must not stand upwards.

C. Closing the camera back

D. Preparing for the exposure
Actuate rapid winding lever (12) and shutter release (4) until exposure counter (13) stands on number "1".

E. Setting the film speed
Lift the knurled ring of speed setting knob (1) and rotate it until the speed value of the film in the camera stands
opposite the film speed index (11).

E. Setting the exposure speed
Rotate speed setting knob (1) until the desired speed numeral stands opposite the orange-colored triangle (9) on
the cover plate of the camera.

G. Setting the diaphragm numeral
Rotate diaphragm setting ring (15) on the lens mount to bring the desired diaphragm numeral against the red
index mark.

H. Automatic exposure control
When using lenses permitting electric transmission of the diaphragm values, set the selector ring (16) to the
OPEN CIRCLE symbol = measuring at full aperture. For lenses without electric transmission set the selector
ring to the CLOSED CIRCLE symbol = measuring with the lens at taking aperture!
Preselect either the shutter speed or the aperture. Depress shutter release (4) till you feel the pressure point, At
the same time rotate either the diaphragm setting ring (15) or the speed setting knob (1) till the meter needle is
centered in the circular mark in the viewfinder field. In connection with the taking aperture of lenses with
automatic diaphragm control, the stop down key (30) has to be depressed when meter reading is taken or the
engaging kind selection lever of the 50 mm f/1.8 Pancolar lens, which is designed for electric transmission of
diaphragm values, has to be actuated downwards to the camera battery.

I. Focusing
Rotate distance setting ring (14) until the image in the microprism screen or in the ground glass field appears
perfectly sharp.

K. Releasing and winding the shutter
Depress shutter release (4) to beyond the pressure point. After the shutter has run down a signal appears in the
left-hand side of the viewfinder. Swing winding lever (12) around as far as it will go and return it into its initial
position.

L. Delayed action release
Swing delayed-action winding lever (2) upwards either before or after winding the shutter. Depress knob (3) to
release the delayed-action mechanism.

M. Changing the film
After the last exposure, depress rewind release knob (26), swing out rewind crank (6) and turn it in direction of
arrow to rewind the film. Open the camera back and remove the cartridge.

N. Exchanging lenses

O. Flash exposures

P. Exchanging the power source

Q. Maintenance of the camera

R. Accessories

The Abridged Instructions are a short summary of the most important items. A detailed description is given in
the main section on the following pages.



A. Opening the camera.

Pull rewind knob (5) upwards until you feel hard resistance. The camera back is thus unlocked and can be
opened. The exposure counter (13) will automatically jump to zero position.

Any type of perforated 35 mm film in commercially available standard cartridges may be used. The cartridges
contain film lengths for 36, 20 or 12 exposures in the 24 x 36 mm format. To make sure that no light enters the
slit of the cartridge the film should not be loaded in direct sunlight. The shade of your own body will suffice.

By having pulled out the rewind knob (5) to open the camera back you have withdrawn the rewind-catch (18)
from the cartridge chamber (19), so that you can now place the cartridge into the cartridge chamber.





Push the rewind knob, with slight backward and forward movements, right back into the camera. The rewind
catch will engage In the core of the cartridge.


Push the beginning of the film projecting out of the
cartridge slit from above as far as it will go underneath
the supporting piece (23) arranged above the transport
sprocket (22).
The beginning of the film strip must now lie on the core
of the take-up spool (29) and meet the green marking
point (25).

The wire bracket (23) of the take-up spool must not stand upwards. Should this happen to be the case the
knurled flange of the spool has to be turned to bring the bracket wires to their lateral position.





.
Press the camera back firmly on the camera body.
It locks automatically





The rapid wind lever (12) has an idle
stroke of about 15°, so that it can be
moved from its rest position into that
of readiness for action, and can thus
be easily grasped - a great advantage
especially in serial shots.





Swing the winding lever around as far as it will go, return it, and depress shutter release knob (4). Repeat these
operations and then wind the shutter once more. The automatic exposure counter (13) now stands on number
"1". Special setting of the exposure counter is not necessary since it starts working automatically when the
camera back is closed.



To avoid inadvertent tripping, the
shutter release (4) is provided with a
locking device. The release
mechanism is locked when the red
dots on the knob and on the outer ring
meet. The mechanism is unlocked by
rotation of the knob through 90°.

E. Setting the film speed




To set the film speed value for the automatic exposure control, the
knurled ring of the speed setting knob (1) has to be lifted and rotated
until the speed value of the film loaded (DIN or ASA) stands
opposite the white index (11). When lowered, the knurled ring clicks
in at the selected film speed numeral.





F. Setting the exposure speed





The metal-blade focal-plane shutter can
be set for exposure speeds range from 1
sec. to 1/1000 sec.
When set on "B" the shutter remains
open as long as the release knob (4) is
being depressed. For exposures of a
longer duration a cable release with
locking device should be used which
can be screwed into the thread in the
body release knob. Regarding exposure
speeds in connection with flash units
please refer to Section O.





The orange-colored numerals on the shutter-speed setting knob (1) stand for slow speed exposures from 1 sec.
to 1/15 sec. which require the use of a tripod. The white numerals indicate the values for instantaneous shots
from 1/30 sec. to 1/1000 sec.

The exposure speeds are set by rotating knob (1) until the desired numeral coincides with the orange-colored
triangle (9) on the cover plate of the camera. Please note that the knurled ring of the setting knob must not be
lifted up since this would alter the film speed setting and cause the automatic exposure system in the
PRAKTICA LLC to give incorrect results.

The exposure speeds can be set either before or after the shutter has been wound. The setting knob clicks in at
every numeral. Intermediate values are not adjustable.

G. Setting the diaphragm numeral




On the lenses with automatic pressure
diaphragm (APD) only the desired
aperture numeral on the diaphragm setting
ring (15) has to be brought to meet the
appropriate index on the lens mount. The
diaphragm thus remains fully open at first
and closes down to the preselected value
when the shutter release is depressed.





The automatic diaphragm control
mechanism in the PRAKTICA LLC causes
the pressure diaphragm to function as an
automatic spring diaphragm. Regardless of
the speed with which the shutter release
(4) is depressed, the diaphragm will spring
to the preselected value and then open
again immediately after the shutter has run
down.

For checking the depth of field in the
viewfinder image, most lenses con be
stopped down, before the exposure is
made, to the preselected value or to the
value determined by the exposure meter by
means of a manually operable key (30) on
the lens mount.





The 50 mm f/1.8 Pancolar lens with electric transmission of diaphragm values has a kind selection lever
opposite the lens mount instead of the stop down key. With the lever in the upper position the diaphragm
operates as an automatic spring diaphragm whereas in its lower position, depressed towards the camera bottom,
the automatic diaphragm control mechanism is disengaged. The diaphragm acts as a click stop and closes
according to the value preset on the diaphragm ring.

H. Automatic Exposure Control



The newly devised automatic
exposure system in the
PRAKTICA LLC makes it
possible, by means of the electric
transmission of the diaphragm
values, to take the meter readings
with the photographic lens at full
aperture, so that the viewfinder
image remains at its maximum
brightness. The lenses arranged
for metering at full aperture are
recognizable by three resilient
contact pins visible at the rear
end of the barrels, which join the
contact paths on the camera.





But it is also possible to use the well-known lenses of the
PRAKTICA family without automatic diaphragm control. In
this case, metering is performed with the lens stopped down to
taking aperture. The finder image will thus be somewhat darker,
according to the aperture selected, or determined by the
exposure meter.





Whether your lens is at full aperture or stopped down, you have in either case, two methods of metering from
which to choose:

a) You preselect the shutter speed and adjust the aperture to center the meter needle, or

b) You preselect a certain aperture and adjust the shutter speed to center the meter needle.

The first method is applied, e.g., if movement of the
object requires a certain exposure speed, whereas the
second method will be preferred if a specific aperture
has to be preselected to achieve the necessary depth of
field.





Metering at full aperture with shutter speed preselected

Set the index of selector (16) which, as a knurled ring, encircles the rewind knob, to coincide with the E,
symbol. Preselect the exposure speed by actuating knob (1). Depress shutter release (4) till you feel the pressure
point and rotate diaphragm setting ring (15) on the lens mount till the meter needle visible in the viewfinder
field is centered in the circular mark.

If on the rotation of the diaphragm setting ring or the exposure speed setting knob the meter needle deflects no
more, replace the power source (please cp. section P).

Metering at full aperture with diaphragm stop preselected

Set selector ring (16) to the E] symbol. Move the diaphragm setting ring (15) on the lens mount to a stop
corresponding to the taking conditions. Depress shutter release (4) till you feel the pressure point and rotate the
exposure-speed setting knob (1) till the meter needle is centered in the circular mark.




The exposure speed knob must always be set to
click-stops and not to intermediate values. Should this
not bring the meter needle precisely to the center of
the circular mark, the diaphragm ring has to be
moved for fine adjustment. The diaphragm ring can
be set to intermediate values between the click-stops.

Metering at taking aperture with shutter speed preselected




 This method is employed in connection with lenses
not permitting electric transmission of the diaphragm
values. Move selector ring (16) to the El symbol.
Preselect the shutter speed adjust the diaphragm ring
to center the meter needle as described above. On
lenses with automatic pressure diaphragm the stop
down key (30) on the lens mount has to be depressed
while the meter reading is taken.





The 50 mm f/1.8 Pancolar without electric transmission of the diaphragm values is provided with a kind
selection lever by which you can change over from automatic diaphragm control to manual operating (please
cp. section G). For meter reading this lever must be in its lowermost position so that the diaphragm acts as click
stop. As soon as the lever is returned into its upper position, metering is performed automatically again.

Metering at taking aperture with pre-set diaphragm

To be employed with lenses not permitting electric transmission of the diaphragm values. Selector ring (16)
stands on the E] symbol. Preselect aperture on diaphragm ring of lens mount and adjust shutter speed setting
knob to center meter needle. Pay attention to click-stops and fine adjustment by means of diaphragm ring.





 Here, too, the shutter release has to be actuated up to
the perceptible pressure point.





If lenses without automatic diaphragm, i.e. lenses with pre-set or plain diaphragm, are being used for
metering at taking aperture, the lens remains stopped down until the shutter is released, It is, therefore,
advisable to focus with the lens wide open before taking the meter reading.

Owing to the construction of their barrels, some of the older types of lenses protrude so far into the interior of
the camera body as to impede the functioning of the swing mechanism for the automatic diaphragm. Thus,
mirror and shutter cannot work These lenses cannot be used in the PRAKTICA LLC. They are recognizable by
the structure of their barrels, as may be seen from the illustration below.

Measuring range of the PRAKTICA LLC

If the luminous density of the object to be photographed is very low, the meter needle, even at the smallest
diaphragm numeral -- e.g. 1.4 -- and a slower shutter speed, cannot be centered within the circular mark. In fact,
the selection of yet longer exposure periods will disconnect the automatic exposure system, so that the meter
needle will swing downwards to its stop point. When lighting conditions become more favorable again, a
shorter exposure time has to be set before the automatic exposure system will recommence functioning.

The table shows within which range of speeds the automatic system works in connection with the various film
speed settings.


                      Speed of film
DIN                                           Exposure-speed
                ASA

12                   12                   1 sec. to 1/1000 sec.

15                   25                   1 sec. to 1/1000 sec.

18                   50                   1 sec. to 1/1000 sec.

21                   100                     1/2 sec. to 1/1000 sec.

24                   200                     1/4 sec. to 1/1000 sec.

27                   400                     1/8 sec. to 1/1000 sec.

30                   800                    1/15 sec. to 1/1000 sec.

33                   1600                   1/30 sec. to 1/1000 sec.

I. FOCUSING

To brighten up the image, the prism viewfinder of the PRAKTICA LLC is fitted with a Fresnel lens, in the
center of which are the two focusing systems:

- the microprism screen right in the middle and --the circular ground glass area surrounding it.

Focusing is performed by rotating the distance setting ring (14) on the taking lens. To achieve utmost definition
when using lenses with pre-set diaphragm or simple diaphragm adjustment, it is advisable to focus with the lens
set to the smallest diaphragm numeral (full aperture).

Focusing on the microprism screen

The image in the microprism screen is in correct focus as soon as it appears clear and free from fuzziness. It is
out of focus if it looks fuzzy and crumbles into screen elements. The microprism screen is usually employed for
focusing if the subject to be photographed is in resting position or only slightly moving.

Focusing on the circular ground glass Oreo

The ground glass area is used for focusing if there is more movement in the scene. Also this kind of setting is
often most appropriate in macrophotography or photomicrography as well as on lenses with a small relative
aperture (diaphragm numeral higher than 4).
The ground Fresnel section of the viewfinder is not meant to be used for focusing.

Depth-of-field indication





The depth of field is determined by
means of the depth-of field scale (31)
arranged on the right and left of the
red index on the lens mount.





While the value of the camera-to-subject distance figure stands opposite the distance mark, the limits of the
range of definition can be read from the distance scale above the numerals on the depth-of-field scale, which
latter are equivalent to the diaphragm numerals of the lens. As an example, the illustration shows a zone of
sharpness from 2 m to 5 m (7 ft. to 16 ft.) for a distance setting of 3 m (10 ft.) and an f/8 aperture.

When the manual stop down key is depressed or the diaphragm selection lever of the 50 mm f/1.8 Pancolar is in
its lowermost position, you will be able to judge depth of definition in the finder image.

Persons with defective eyesight may work without their spectacles on by having a corrective lens corresponding
to their long-distance glasses fitted into the eye cup which is then attached to the ocular mount (see Section
"Accessories").

For infrared exposures the focusing
point has to be slightly modified. By
rotation of distance setting ring (14), the
distance reading which, after focusing,
stands opposite the distance mark, has to
be moved to meet the infrared dot next
to that mark. Thus, the image produced
by the infrared rays is brought into
correct in relation to the film
(As of 2024 there are a few companies
making B&W IR film again)



K. Releasing and winding the shutter.

Before releasing the shutter, please note the following:

1. Make sure that the shutter release is unlocked (see Section D)

2. If the signal is visible in the left side of the viewfinder, the camera is not ready for exposing. The shutter has
to be wound!

3. For exposure speeds slower than 1/30 sec. a tripod and a cable release should be used.





                              We advise you to hold your PRAKTICA LLC
                                               so that it lies firmly in both hands and you are
                                                  able to actuate the shutter release (4)
                                                 comfortably.

                                             Depress the shutter release steadily -- never with
                                               a jerk past the soft-running limit, where the
                                                automatic exposure system is switched in, until
                                                   the shutter runs down.

                                                 After the exposure, the signal on the left side of
                                                   the viewfinder image becomes visible again, a
                                                  sign that the shutter has to be wound .

L. Delayed-action release

The delayed-action mechanism is wound by moving lever (2) upwards as far as it will go. By means of pressure
on knob (3) it will start and after about 10 seconds the shutter is released. The delayed-action mechanism may
be tensioned either before or after the shutter is wound. Also, the shutter can be released in the usual manner by
means of release knob (4), even if the delayed-action device is tensioned.





M. Changing the film

When the exposure counter (13) indicates the maximum number of frames obtainable with the film in the
camera (12, 20 or 36 exposures) the film has to be re-wound and taken out of the camera.

Depress rewind release knob (26) in the base plate of the camera It will remain locked in this position. Unfold
rewind crank (6) out of rewind knob (5) and rotate it, not too quickly, in the direction of the arrow. Rewinding
at too great a speed may cause electrostatic charge and static on the film.

As rewinding is completed, greater resistance becomes noticeable until the film is disengaged from the take-up
spool. After this, the crank turns quite easily.

Fold the rewind crank back into the knob and pull the knob upwards as far as it will go. The camera back is thus
unlocked and can be opened. Remove the cartridge with the exposed film from the cartridge chamber. Loading
a new film, and subsequent winding of the shutter, cause the rewind knob (26) to spring back automatically out
of its click-stop position.

Should you have attempted to expose more frames than the number marked on your film packet, the winding
lever might, at the end of the film, get jammed so that it cannot be swung around completely.

Do not, in such a case, use force, as this might cause damage to the perforation of the film, or the end of the film
might slip off the spool inside the cartridge. Rewinding would then be impossible.

If the winding lever (as described above) has not been fully tensioned, this must be completed, and the shutter
released, after rewinding and removing the exposed film and before inserting a new one.





N. Exchanging lenses





The standard lens of the PRAKTICA LLC
can easily be replaced by lenses of other
focal lengths. You take hold of the lens
body, as shown in the illustration below,
and turn it in an anti-clockwise direction.
The exchange lens is inserted accordingly
and screwed tight.





For exposure measurement at the widest lens aperture in the PRAKTICA LLC, lenses permitting electric
transmission of the diaphragm values are employed. The name of the lens is added by "electric". Furthermore,
these lenses are recognizable by three contact pins visible at the rear end of the barrels. But you may also use
the ordinary PRAKTICA lenses with this camera, in which case metering has to be performed with the lens
stopped down to taking aperture.

Because of their structural design, some of the older types of lenses cannot be used with the PRAKTICA LLC.
(For details please refer to Section H).

List of interchangeable lenses:

1. Lenses permitting electric transmission of diaphragm values


Jena Pancolar                 50 mm f/1.8       APD

PENTAGON electric          50 mm f/1.8      APD

PENTAGON electric          29 mm f/2.8      APD

PENTAGON electric          100 mm fl2.8      APD

PENTAGON electric          135 mm f/2.8      APD



2. Lenses not permitting electric transmission of diaphragm values


aus Jena Flektogon            20 mm f/4        APD

aus Jena Flektogon            35 mm f/2.8       APD

PENTAGON auto             50 mm f/1.8       APD

aus Jena Pancolar             50 mm f/1.8       APD

aus Jena T                   50 mm f/2.8       APD




PENTAGON               135 mm f/2.8         PD

aus Jena S                 180 mm f/2.8        APD

PENTAGON               200 mm f/4          PD

PENTAGON               300 mm f/4          PD

PENTAGON               500 mm f/5.6         PD

                          1000 mm f/5.6
aus Jena catoptric lens
                             without diaphragm



APD = automatic pressure

PD = pre-set diaphragm

O. Flash exposures





The shutter of the PRAKTICA LLC is
designed for synchronization with flash
bulbs and electronic flash units.





When the flash unit is attached to the
camera, the electric connection
between camera and unit is
automatically effected by means of the
center contact (8) in accessory shoe (7).
No synchronization cable is required.
Modern flashbulb and electronic units
are equipped for this purpose with a
suitable co-operation contact.




For the use of flash units fitted with a synchronizing cable, an adapter piece with flash socket to accept the cable
plug has to be pushed on to the accessory shoe of the PRAKTICA LLC.

Flash bulb exposures
In connection with bulbs for short flash duration, the shutter has to be set for a speed of 1/30 sec. -- marked by
the lamp symbol -- or slower. The ignition circuit is closed only as long as the shutter runs down and is open
after the shutter has terminated running-down and during the tensioning procedure, so that flash bulbs can be
exchanged also before the shutter is wound.

Electronic flash exposures
Owing to the extremely rapid travel of the curtains in the metal-blade focal-plane shutter, synchronization up to
a shutter speed of about 1/125 sec. is made possible. The knob for setting the shutter speed has to be moved to
the flash symbol setting next to "B".

The guide number
The diaphragm numeral to be set on the lens mount for flash exposures can be found with the aid of the "guide
number". Manufacturers of bulbs and electronic flash units give these guide numbers on the wrappings or in the
instructions for use as required for the various sensitivity grades of the negative material. The correct aperture is
determined by dividing the guide number for the flash in use by the flash-to-subject distance figure (in metros).
Formula for the flash unit attached to the accessory shoe of the camera:

P. Exchanging the power source

The exposure meter system is powered by a Mallory battery of the PX 21 type.  There are exact replacement
batteries available for this camera


                        The battery compartment (27) is on the under
                               side of the camera. It is opened by lifting the
                                  plastic lid by means of its handle piece.

                     When inserting the battery, press its bottom
                                 plate (positive pole) against the spring contact
                                 (also marked +), while at the same time
                               tipping it into the battery compartment.

                       To close the battery compartment, attach the
                               side of the lid opposite the handle to the
                             corresponding side of the compartment and
                              depress the lid on the handle side until it
                                 clicks in.



Owing to the low consumption of current during the period of reading, with normal use of the camera, the
battery should be exchanged after about two years, only.

Q. Maintenance and care

The PRAKTICA LLC is a high quality precision instrument. Perfect functioning of the camera depends very
largely on proper handling and careful maintenance.

The camera must, above all, be protected against shock and impact, dust and moisture. That is why the
Eveready case should be used wherever possible.


                                       From time to time the cartridge chamber and
                                                spool chamber, also the film track and camera
                                            back with film pressure plate must be cleaned
                                               with a soft brush. But be careful not to exert
                                                  pressure on the steel blades of the shutter nor to
                                               touch them with your fingers.

                                                 Neither should the optical parts (lens, eyepiece
                                                  of viewfinder, mirror) be touched with the
                                                       fingers. Should this have happened accidentally,
                                           any fingerprints must be removed immediately
                                               with a soft cotton cloth after a soft brush has
                                            been used to remove any possible dust. The
                                                 mirror should be dusted only in urgent cases
                                               with a very soft brush.

                                           Never clean, or by any means apply abrasives to
                                                   the precious metal pins on the lenses, the means
                                                  of electrically transmitting the diaphragm
                                                    values, or to the three precious-metal coated
                                                   contact paths in the camera. The contact points
                                                   are automatically cleaned in the process of
                                             exchanging lenses. But also here, any dust
                                           which may have accumulated has to be removed
                                               with a soft brush.


If due to the battery in the battery chamber a thin white layer has deposited, the latter can be removed with a
soft cloth.

Do not interfere with the mechanism of the camera. Repair work should be carried out only by one of our
special Repair Workshops.