LOMO GLADIOLUS User manual

GLADIOLUS
movie camera
1. INTRODUCTION
This description and manual are purposed for learning recording camera “Gladiolus-1”. It contains all information necessary for
full use of the camera features and to correct operation.
2. PURPOSE
The recording camera Gladiolus is purposed for shooting processes (including fast-flowing ones) from moving vehicles (both
air and surface). It can be used:
1) By operator holding the camera in his hands in limited space.
2) By operator holding the camera in his hands or having it mounted on a support outdoors.
3) On immovable support.
3. SPECIFICATIONS
Film type
35mm
Film movement
Direct only, in one plane
Number of films in the film channel
1
Shooting speed, fps
24, 48, 96, 144, 192, 216-240
Speed deviation, %
+/-2.5
Image deviation, mm, no more
- at 24-96fps
- at 144-240fps
0.02
0.04
Starting time, sec, no more
3
Available lenses, F, mm
18, 28, 40, 75, 150, 300
Flange focal length?
57+0.01
Mag capacity, m
60, 120
Magnification of the viewfinders, x
- attached viewfinder
- monocular
- collimator sight
- prismatic sight
6
8
1
3
Shutter
Disc-shaped, single-blade, variable angle (30, 60, 90, 120, 145
degrees)
Drive
DC motor MU-332A with tacho-generator and separate control unit
Power source
DC 27V+/-2.7V with no more than 3% pulses allowed
Consumption current without heater, A, no more
32
Consumption current of the heater, A, no more
24
Control tools
Footage counter, voltmeters, ammeters
Tripod nut
3/8’’
Allowable temperatures, centigrade
+5 (-40 in box) to +35
Atmosphere pressure, kPa (mm of mercury)
613-1066 (460-800)
Ability to work (except power source, control
unit, and remote control) after:
1. Vibration overload, Hz
10 to 200 with acceleration 50 m/sec2(5G).
2. Continuous linear acceleration with
40 (4)

overloads, m/sec2(G)
3. Multiple impact loads with overloads, m/sec2
(G)
40 (4), impact time is 0.01sec
Ability to work of the remote control after
vibrations, Hz
10-20, with 20m/s2acceleration (2G)
Ability to work of the camera after exposure to
maximum relative humidity, %
90 at 20°C
Transportation conditions (without power
source):
1. Transportation overloads with acceleration
of m/s2(G)
30 (3), 80-120 strikes per minute
2. Air temperature, °C
–60 to +60
Dimensions (with 120m mag and 150mm lens),
mm
620x180x190
Dimensions of the control unit, mm
330x190x195
Dimensions of the remote control, mm
250x165x160
Dimensions of the power source, mm
295x250x170
Dimensions of the monitoring unit, mm
315x290x100
Dimensions of the terminal box, mm
175x110x100
Dimensions of the box with heater, mm
660x390x395
Weight with 60m mag and 150mm lens, without
box, kg
17
Weight of the control unit with cable, kg
6.5
Weight of the remote control, kg
4.5
Weight of the power source (without electrolyte),
kg
9.7
Weight of the monitoring unit, kg
2.1
Weight of the terminal box, kg
1.6
Box weight (without heater), kg
7
4. DELIVERY SET
Name, index
Document name
Quantity
Note
Recording camera Gladiolus-1 with parts
mounted on it:
4RKS.00.000
1
- 120m mag
4RKS.03.300
1
- lens mount cap
3RKS.00.00.050
1
For the lens mount
Bracket
4RKS.01.350
1
Small one
60m mag
4RKS.03.200
2
With two cores
120m mag
4RKS.03.300
1
With two cores
18mm lens
4RKS.23.100
1
OKS5-18-1
28mm lens
4RKS.21.100
1
OKS7-28-2
40mm lens
4RKS.20.000
1
OKS1-40-1
75mm lens
4RKS.19.100
1
OKS6-75-1
150mm lens
4RKS.17.000
1
OKS1-150-1
300mm lens
4RKS.15.000
1
OKS1-300-1
Monocular
4RKS.13.000
1
Wit cap for optics
Viewfinder
AGD5.811.001-01
1
Wit cap for optics, collimator
Hand support
4RKS.10.000
1
Tripod 5ShKS
TU19.275-79
1
In case
Remote control unit
4RKS.07.000
1
Control unit
4RKS.08.000
1
Power source unit
4RKS.31.000
1
Electrolyte is in separate
packing
Heater
AGD5.863.000
1
Monitoring unit
4RKS.30.000
1
Bracket
4RKS.12.100
1
For the viewfinder mounting
Bracket
4RKS.12.100-01
1
For the viewfinder mounting
Bracket
4RKS.12.100-02
1
For the viewfinder mounting
Set of light filters
4RKS.27.000
1
For the 18, 28, 40, 75, 150,

300mm lenses
Set of lens hoods
4RKS.26.000
1
For the 18, 28, 40, 75, 150,
300mm lenses, 5 pieces total
145° shutter
4RKS.01.340
1
90° shutter
4RKS.01.360
1
60° shutter
4RKS.01.370
1
30° shutter
4RKS.01.380
1
Ring
4RKS.11.020
1
Ring
4RKS.11.040
1
Bracket
4RKS.11.050
1
Big one
Housing
4RKS.11.070
1
Box
AGD5.285.000-01
1
Ring
AGD8.249.051
1
Cap
4RKS.04.070
1
Attachment
4RKS.04.110
1
Cap
4RKS.04.210
1
Cable #1
33K.000
1
3m
Cable #2
34K.000
1
1.5m
Cable #3
35K.000
1
3m
Cable #4
36K.000
1
30m
Cable #5
37K.000
1
5m
Cable #6
103K.000
1
2.5m
Friction tester
AGD5.178.011-01
1
Box #1
4RKS.35.100
1
Box #2
4RKS.35.200
1
Box #3
4RKS.35.300
1
Box #5
4RKS.35.700
1
Box #6
4RKS.35.600
1
AKA ‘traveling’
Box #7
AGD6.875.058
1
Box #8
AGD6.875.057-01
1
Box #9
AGD6.875.060-01
1
ZIP set
1
In accordance with
4RKS.00.000ZI
Operational documents
Technical description and operational manual
4RKS.00.000 TO
1
Logbook
4RKS.00.000 FO
1
ZIP list
4RKS.00.000 ZI
1
Operational documents list
4RKS.00.000 ED
1
5. CONSTRUCTION AND PRINCIPLES OF WORK
5.1. Principle of work
The principle of work of the movie camera is based on synchronous work of the claw mechanism (transporting a film with
intermittent motion) and the shutter providing exposure of the film during pause of the film movement.
5.2. Construction
General view of the camera is shown at the Figure 1.
The camera consists of the following basic parts and accessories:
1) The camera with motor;
2) Mag;
3) Lens;
4) Viewfinder;
5) Remote control unit;
6) Control unit;
7) Power source unit;
8) Tripod;
9) Hand support;
10) Brackets for heavy lenses;
11) Viewfinder brackets;

12) Box;
13) Heater;
14) Cables.
Depending on shooting requirements, you can mount any lens from the supplied set. Electric coupling is provided by cables.
Installed motor is MU-332A. The remote control unit or control unit accomplishes camera control.
To maintain the camera in operable state at temperatures of +5 to –40°C, it should be placed into the box with heater. The
remote control unit or control unit accomplishes camera control.
Operator can hold the camera by means of the hand support. The camera can be placed onto tripod (without the box or in the
box). The camera used in either hand-held or stationary mode.
Hand-held setup consists of:
1) The camera;
2) 60m mag;
3) Collimator sight;
4) Hand support;
5) Set of the lenses, lens hoods, and light filters;
6) Control unit.
Stationary setup consists of:
1) The camera;
2) 60m and 120m mags;
3) Set of the lenses, lens hoods, and light filters;
4) Brackets for heavy lenses;
5) Control unit;
6) Remote control unit;
7) Stationary support (the box support).
Figure 1. Camera "Gladiolus-1" on the demonstration tripod. General view
5.3. Kinematics
The kinematics of the camera is shown on the Figure 2.
It provides a movement transmission from the motor to the claw mechanism, film-transporting mechanism, shutter, mag, and
film counter. It also generates electrical pulses into external circuit.

Principles of the camera kinematics are described below.
Rotation of the motor (1) is transmitted to the main shaft (I) by means of the pair of oblique-cog wheels (2,3), and to the tacho-
generator (5) by means of the coupling (4). From the shaft (I) the rotation is transmitted to the shaft (II) by means of the pair of
the cone gears (6,7). From the shaft (II) the rotation is transmitted to the shutter shaft (III) by means of the pair of the screw
gears (8,9). Intermittent motion of the film is accomplished by the claw mechanism (11) which shaft (IV) is coupled with the
claw shaft (II) by means of the coupling (12).
The rotation is transmitted to the shaft (V) of the transporting 24-teeths sprocket (15) by means of the pair of oblique-cog
wheels (13,14).
Take-up core is actuated from the shaft (V) by means of two pairs of the intermediate shaft oblique-cog wheels (14,17) and
(18,19), and tooth-type coupling (20).
Steady film feeding from the core (21) to the film channel is accomplished by means of the sprocket (15).
Leaving the film channel, the film forms a free loop and transported to the mag take-up core (16).
Both feeding and take-up lugs have dry friction clutches (22), (23).

Figure 2. Kinematics

5.4. Optical schematics
5.4.1. Attached viewfinder. Optical schematic
The optical schematic of the attached viewfinder is shown at the Figure 3.
The image produced by a lens in the frame window is observed by operator by means of the viewfinder mounted instead of the
claw so that ground glass (30) touch the surface of the front film gate by it’s front matted surface. The image is observed by
operator with resulting 8x magnification by means of the prisms (31), (32), (33) (AR-90° type), 52.4mm lens (34), prism
assembly consisting of the prisms (35, 36, 37), and 15x eyepiece (38). The eyepiece slide (b-B) rotates around the axis (a-b) to
change the output pupil position. The eyepiece has dioptric adjustment of 5 dptr. Linear field of view is 22x16mm. You can
turn the image by turn of the prism assembly (35, 36, 37) around the axis (b-B).
Figure 3. Attached viewfinder. Optical schematic
5.4.2. Collimator sight. Optical schematic
Optical schematic of the collimator sight is shown at the Figure 4.

The optical schematic consists of the grid (40), prism (41) (AR-90°), three-elements lens (42), two-way mirror (43), and
dispersive safety glass (44).
The grid (40) contains transparent crosshair and rectangular easels with ‘40’, ‘75’, ‘100’ marks corresponding to the filed of
view of the 40mm, 75mm, and 100mm lenses.
The image and the easels are observed through the two-way mirror (43). The image within each easel is identical to the image
produced in the frame window by corresponding lens.
Figure 4. Collimator sight. Optical schematic
5.5. Electric circuits
The electrical part of the camera consists of the following circuits:
1) The camera;
2) Remote control unit;
3) Control unit;
4) Heater;
5) Power source unit;
6) Monitoring unit;
7) Cables to connect the units above.
5.5.1. Electric circuit of the camera
The camera electric circuit is shown on the Figure 5.
The motor M2 actuates all kinematics of the camera. Required power is supplied from the power source unit through the pins 1-
6 and 19-24 of the connector Ш1.
The shaft of the motor M2 is cinematically coupled with the tacho-generator M1 which produces a feedback voltage
proportional to rotation speed of the motor M2. The feedback voltage goes to the control unit through the pins 112 and 13 of the
connector Ш1 to form a governing signal for the motor M2.
Resistor R11 included in line with the tacho-generator adjusts the feedback signal slope.
Photodiode Д2, IR-transmitting diode Д3, and amplifier assembled on transistors T1-T3 form pulses of the film movement
during camera’s run. This unit works as described below.
Bridges between perforation holes block a light flow from Д3 to Д2 during film movement. Voltage pulses are passed from the
resistor R1 to the amplifier. Amplified pulses are passed from transistor T3 to the pin 7 of the connector Ш1 and to the control
unit therefore.
Diodes Д4 and Д5 serve for marking events on the film. Required voltage comes from the control unit through the pin 9 of the
connector Ш1.
The button B1 blocks the camera with opened door.
Start-up device is connected through the connector Ш3. The start-up device has buttons B2 and B3 for starting the camera and
marking ‘events’ on the film.

Thermo-relay P (RB-5-1.5°C) indicates readiness of the camera for operation in the box.
Figure 5. Electric circuit of the camera
5.5.2. Electric circuit of the remote control unit
Electric circuit of the remote control unit is shown on the Figure 6.
The circuit works as described below.

When you turn the switch B3 ON, power supplied to the remote control and indicator lamp L2 ‘POWER’ lights up.
When you press the button B1 ‘START’, lamp L1 ‘WORK’ lights up, and 27V DC supplied to the control unit (for
commutating of the camera power) through the button B2 ‘STOP’ and pin 3 of the connector III1. 27V DC supplied to the pin
14 of the connector III1, locks the button B1 ‘START’ through the control unit. Selector B5 is used for setting required
shooting speed.
If camera runs correctly, indicator lamp L3 ‘BREAK’ is off. If there is no film in the camera, or film is broken, the lamp L3
‘BREAK’ lights up in 1-2 seconds after pressing the button B1 ‘START’.
Button B2 ‘STOP’ stops the camera.
Upon appearing an impulse corresponding to every 50th frame on the pin 6 of the connector III1, electro-mechanical counter
IP1 advances length of exposed film in meters with 4.5% accuracy.
After mounting other mag onto the camera, it is necessary to reset the counter by means of the button situated on the counter.
If you operate the camera from the remote control unit, set the speed selector into ‘REMOTE’ position.
If power supplied incorrectly, the button B1 ‘START’ will not run the camera, and lamp L2 ‘POWER’ will be off.
Figure 6. Electric circuit of the remote control unit

5.5.3. Electric circuit of the control unit
Electric circuit of the control unit is shown on the Figure 7.
The control unit is purposed for all necessary connections and stabilizing of the motor rotation speed.
Electric circuit of the control unit consists of several units: rotation speed stabilization unit, voltage converter unit, scalers unit
(purposed for film counting), and some other units purposed for controlling of the camera.
5.5.3.1. Board of the voltage converter and stabilizers U1
The board U1 contains voltage stabilizers of 5V and 12.6V; transformer with rectifier; parametrical stabilizers of –27V and –
12.6V.
The stabilizer of 5V is built using VR diode D1 (2S168A) and output transistor T1 (2T909A).
Resistor R3 sets a required voltage on the stabilizer output. The 5V voltage is required for powering logic elements of the
scaler.
The stabilizer 12.6V is built on the transistor T2 (2T312B), IC Y1 (140UD1B), stabilitrons D2, D3 (D818E, D814A) and
transistor T9 (2T909A) mounted off the board.
The IC Y1 is included into feedback chain. Voltage on the inverting input of the operational amplifier is stabilized by stabilitron
D2. Required voltage on the output of the stabilizers is set by means of the trimming resistor R5.
Output voltage of the operational amplifier controls operation of the output transistor T9 through transistor T2. Diode D3
matches signal levels of the transistor T2 and IC Y1.
The voltage converter is used to provide –12.6V and –27V using +27V. The converter is built as duple multivibrator on the
transistors T4, T5 (MP26B) and transformer Tr. Output secondary voltage is rectified by half-duplex rectifier built on diodes
D4-D7 (2D522B). Voltage stabilizer of –12.6V and –27V is built on stabilitronts D8-D10 (D814D).
5.5.3.2. Board of the scalers U2
Scalers board is purposed for producing of the footage reading impulses. Is also produces impulses after every 10th and 100th
frame.
The camera sensor impulses are passed from the board U4 to the pin 1 of the connector III5 and further to the IC U1
(134LB1A) for improving of the impulse fronts.
Triggers Y2-1 and Y2-2 (IC 134TB14) form a scaler dividing a frequency by 4. This provides matching of the camera sensor
impulses with quantity of exposed frames.
Triggers Y3-1, Y3-2, Y4-1, Y4-2, Y5-1, Y5-2 and Y6-1 extract every 50th impulse to read meters of the exposed film.
A signal from pin 8 of the trigger Y6-1 passes to the NOR gate Y7-4 and further to the differentiating circuit Y12-1, Y12-2.
Differentiated signal passes to the IC Y10-2 for improving a fronts, and further to the inflowing currents producer Y11 (IC
146AA2A). The signal for pin 12 of the IC Y11 passes to the film counter of the remote control unit.
Trigger Y6-2 is purposed for extracting every 100th frame. The impulses of every 10th and every 100th frame are passed through
the coincidence elements (Y7-Y8 and Y10-3) to the inflowing currents producer Y13, and from the pin 12 of the connector III8
to the remote control unit to register the feedback impulse on the external equipment. ICs Y8, Y10 and Y11 are used to place an
‘events’ mark on the film.
When switch B4 ‘MARK’ is set to ‘MARK’ position, signals form the buttons ‘events’ of the remote control unit and control
unit pass to the input of the IC Y9-4, and to the inflowing currents producer Y11 through the matching logic element Y10-1.
From the UC Y11 the signal passes to the camera LEDs (through the pin 9 of the connector III2) to mark a film.
It this position of the switch B4 ‘MARK’ a signal also appears on the LEDs at every 10th and 100th frame.
In the position ‘SOWING’ of the switch B4 ‘ MARK’, external signals are supplied to the LEDs.
5.5.3.3. Board of the DC amplifier U3 and Board of connections U4
DC amplifier (board U3) is purposed for providing a master voltage supplied to the power amplifier built on transistors T1-T8.
The amplifier works as described below.
When you switch on the switch B1 ‘POWER’ of the control unit, stabilized voltage 12.6V is supplied to the board through pin
11 of the connector III6. Reference voltage from scaler R11-R14 is filtered by capacitor C5 and passed to the inverting input of
the operational amplifier (IC Y2, 140UD1B). Then it is amplified and supplied to emitter follower built on transistor T5
(2T608B). Then it is passed to the output stage of the power amplifier.
It the ‘START’ mode, the output stage is open, and provides a power to the camera motor through pins 19-24 of the connector
III2. A tachogenerator linked to the motor begin to run together with the motor. The TG voltage is passed to the commutation
board U4 of the control unit.
Depending on the selected shooting speed (set by selector B3 ‘FPS’), one of the relays P1-P6 in actuated and passes the
feedback voltage from the TG to the operational amplifier (Y1) and transistors T1-T3 of the board U3. Output voltage of the
transistor T3 has inverted polarity relatively to reference voltage. Operational amplifier (IC Y2) of the board U3 combines the
reference voltage and negative feedback voltage.
The motor will speed up until feedback voltage match the reference voltage. Sustained speed will be maintained automatically.
Board U4 contains also commutation device of the ‘START’ mode.

When you switch on the switch ‘START’ of the control unit, or push the button ‘START’ of the remote control unit, 27V is
supplied to the relay P9 of the board U4. This relay links chain R23-C4 to the base of transistor T4. This chain provides
actuating of the relay P8 for 1-2 seconds for producing a DC signal fro the impulses coming from the camera.
If there are no impulses from the camera, this can be caused by absence of the film or by its break. So, the camera stops after 1-
2 seconds.
If the camera runs correctly, the relay P8 remains in ON state, and feeds 27V to the relay P1 through its pins 22-23 and pin 18
of the connector III7.
Relay P1 feeds the power amplifier through its pins 12-22. To stop the camera, just switch OFF the switch ‘START/STOP’ on
the control unit, or release the ‘START’ button on the camera, or press ‘STOP’ button on the remote control unit.
If you operate the camera from the remote control unit, set the speed selector into ‘REMOTE’ position.
You can run the camera without film during adjusting or maintenance. To do this, press the button B6 ‘LOCK OFF’. In all
other cases this button should be released.
Blocking diodes D1 and D3 protects the camera from wrong polarity.
If polarity is wrong, indicator lamp L1 is off.
Box is connected to the camera through the connector III3.
Figure 7. Electric circuit of the control unit
5.5.4. Electric circuit of the power source unit
Electric circuit of the power source unit is shown on the Figure 8. The power source unit is purposed for powering the camera
with 272.7V DC. The power source unit is connected with the control unit by means of the 4-pins connector. Connector Ш1
situated on the power source unit.

Figure 8. Electric circuit of the power source unit
5.5.5. Electric circuit of the heater
Electric circuit of the heater is shown on the Figure 9. The heater is purposed for maintenance of positive temperature in the
box during operation at low temperatures (less than +5°C).
The heater is stand-alone unit mounted onto the box. Powering of the heater is accomplished from separate power source of
272.7V DC. Power consumption is not more than 600W.
---Section omitted---
Figure 9. Electric circuit of the heater
5.5.6. Electrical connections
Electrical connections are shown on the Figure 10. The connections are accomplished by means of the cables:
Cable #1 connects the power source unit with the connector Ш1 of the control unit. The cable is purposed for powering the
camera.
Note. During maintenance procedure powering is accomplished through the terminal box of the monitoring unit.
Cable #2 connects the camera with the connector Ш2 of the control unit.
Note. During maintenance procedure powering is accomplished through the terminal box of the monitoring unit.
Cable #3 connects connector Ш3 of the control unit with the connector Ш2 of the heater.
Cable #4 connects the remote control unit with the control unit.
Cable #5 is purposed for providing the camera with ‘time’ markers during maintenance procedure.
Cable #6 is used instead of the Cable #1 when the camera is powered from the external power source.

Figure 10. Electric connections
5.6. Electrical circuit of the monitoring unit
Electrical circuit of the monitoring unit is shown on the Figure 11.
The monitoring unit is purposed for measuring powering voltage and consumption current during maintenance procedure. It
also measures voltage of the tacho-generator and current of the motor at different speeds.
The monitoring unit consists of the terminal box and monitor.
The terminal box is transit unit with shunts Шн1 and Шн2 purposed for measuring consumption currents on them. Their
voltage drop is passed to the monitor through the connector Ш5.
The monitor has the measuring devices ИП1-ИП4 and switches for switching these devices. It has also 2-pin connectors for
external indicators (voltmeter, oscilloscope, frequency meter etc.)
The monitor has built-in marker generator assembled on the transistors T1-T4.
Powering of the marker generator is accomplished from the voltage stabilizer assembled on the resistor R7 and stabilitron Д2.
Switching the marker generator is accomplished by the B1 switch ‘Generator ON’.

Figure 11. Electric circuit of the monitoring unit
5.7. Construction and operation of the basic parts
5.7.1. The camera
The camera is pictured on the Figures 12, 13. It is the body (51) (Figure 12) with gears inside.
5.7.1.1. The camera body
The body has the frond side (53) (Figure 12) attached to it by means of the screws (52). The front side has lens mount. A lens
body has the ring (54) to attach a bracket for heavy lens support. The ring and body are fastened to the brackets by means of the
screws (55). The housing (56) covers the motor. The cap (57) can be taken off for manual turn of the camera gears.
There are two bearing sleeves for the brackets (59) on the camera body to the right of the lens mount. The bracket (the small
bracket is pictured) is fastened to the bearing sleeves by means of the screws (58). Third bearing sleeve situated at the front side
of the camera, and the bracket is fastened to it by means of the screw (60).
Rear right part of the camera contains the motor unit. The motor unit consists of motor (1) (Figure 13) which flange is fastened
to the body by means of the screws (61). Console part of the motor is supported by the brackets (62) (one bracket is pictured).
The tacho-generator is coupled with the motor shaft and secured by means of the screw situated in the “A” hole.
Bottom slope of the camera has the connector (63) for connecting the camera with the control button of the hand support.
The bracket (62) has the connector (64) connection the control unit and the camera. Bottom part of the camera has the plate (65)
with tripod nuts in it.
The lens mount has the bayonet ring (66) with locking ring (67).

Figure 12. View from the lens brackets side.
Figure 13. View from the motor side. Housing is removed.
5.7.1.2. Camera mechanism
Board (84) (Figure 14) holds the film movement mechanism consisting of:
1) claw mechanism (11);
2) sprocket (15) wit top (85) and bottom (86) carriages;
3) marker (87) of time pulses;
4) damping rollers (88), (89), (90);
5) guider (91);
6) film stripper (92);
7) sensor (93);
8) thermo switch (94);
9) tooth-type coupling of the mag coupling.
The transporting mechanism is fastened to the body (51) by means of the screws (95) and covers by a cover.
The claw mechanism moves a film through the film channel. The claw mechanism consists of the body (96) (Figure 15) which
contains quadric-crank mechanism consisting of the crankshaft (97), the con-rod (98), and the cross-beam (99).

4-teeth reg pin moves along two guiders (100) and along rear gland guider attached to the body by means of screws. Movement
from claw forks is transmitted to the reg pins by means of the lever (101). Both crankshafts are installed in the busing (102)
which outer diameter is eccentric regarding to the crankshafts axes.
Front gate (103) is secured by means of the lock (104). Rear gate consists of two parts (105) and (106).
To ensure reliable work of the mechanism at speed of 24 to 216-240 fps special adjustment is used to change a distance
between claw mechanism pins and reg pins. This adjustment is accomplished by turn of the bushing (102) accordingly to
engraving of the mechanism body, and secures by means of the screw (107) (Figure 16). The coupling (108) (Figure 15) links
the mechanism to the camera gears. The claw mechanism is aligned in the camera by means of the protruding part of the
bushing (102) and secures by means of the screw (109) (Figure 16).
Front film gate is mounted on the pin (110) (Figure 14) and secures by means of the latch (104).
Figure 14. The camera gears
Figure 15. Claw mechanism. Front and rear gates are removed.

Figure 16. Claw mechanism
5.7.2. Mags
The mags are shown at Figures 17 and 18.
The camera is supplied with two types of the mags –60m and 120m.
All the mags are detachable, common chamber. They are installed into the camera onto two alignment pins and secured by
means of the thread lock (120) (Figure 17).
All main gears of the mag are mounted onto it’s body (121): feeding clutch (122), take-up clutch (123), exposed film counter
(124), guiding rollers (125), (126), and opening parts (127).
Levered counter shows length of the exposed film in meters. It touches the film roll in working position.
Film cores are standard ones: feeding core has 50mm diameter, take-up one –75mm.
The mag lid has two devices for film winding (128), (129) (Figure 18).
The lid is secured by means of the lock (130) and clamp wedges (131), (132).
60m mag has similar construction.
Figure 17. Mag with opened cover

Figure 18. 120m mag
5.7.3. Lenses
The lenses are shown at the Figure 19. They are complex optical systems purposed for projecting of the geometrically correct
image to the film.
18mm and 28mm lenses are used to shoot a tool and wide objects, landscapes, indoor shots etc.
40mm lens has a general purpose.
75mm, 150mm, 300mm lenses are used for nature shooting of distant objects, hard-to-reach objects, indoors, macro shootings,
and if it is impossible to get close to an object.
The lenses consist of the optical units in focusing mounts. The mount consists of the focusing mechanism (moving the optical
unit along it’s axis) and aperture control. Both focusing ring (140) and aperture ring (141) have stopping devices.
Stopping device of the aperture ring is spring-loaded metal ball stopping the ring in selected position.
Stopping device of the focusing ring is special screw pushing the movable ring by means of the friction element.
The focusing mechanism of 75mm, 150mm, 300mm lenses is spiral groove with dowel moving in it.
The lenses has the light filters YB-17, OB-12, and RB-11. Specifications of the lenses are listed in the Table 8. Table 8
Parameter
Focal lengths, mm
18
28
40
75
150
300
Allowed error in focus distance, %
2
2
2
2
3
3
Relative aperture
1:2.8
1:2.5
1:2.5
1:2
1:2.8
1:3.5
View angle, °
76
53.4
40
20.6
10
5.7
Aperture range
1:2.8–1:16
1:2.5–1:16
1:2.5–1:16
1:2–1:16
1:2.8–1:16
1:3.5–1:16
Light transmission factor
0.75
0.80
0.75
0.75
0.72
0.90
Flange focal length, mm
57+0.01
Lens mount
4-ears bayonet

Figure 19. Lenses
5.7.4. Viewfinders
The viewfinders are: attached viewfinder, monocular, collimator sight, prismatic sight.
5.7.4.1. Attached viewfinder
The attached viewfinder is shown on the Figure 20. It is purposed for focusing and keyframing. The viewfinder’s construction
allows to orient it in any direction within a free hemisphere. Turn of the image is possible by means of the ring (145) after
loosening of it’s lock. The viewfinder is fastened to the camera by means of screws.
The ring (146) allows to adjust diopters in 5dptr range. The viewfinder magnification is 6x. The viewfinder is mounted in
place of the claw mechanism.
Figure 20. Attached viewfinder
5.7.4.2. Monocular
The monocular is pictured on the Figure 21.
It is purposed for focusing the camera on a distant object.
The monocular consists of lenses and reversal prisms inside the body, and eyepiece (148).
Mounting of the monocular onto the camera is accomplished by means of the bracket (149).
Dioptric adjustment is possible by means of the ring (150) in 5dptr range. The monocular magnification is 8x.