Film cameras
Stereoscopic camera User manual
User manual for Stereoscopic camera. 14 pages in English. Read the original PDF, download or print a copy without registration.
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Document details
- Brand
- Various brands
- Model / document
- Stereoscopic camera
- Document type
- User manual
- Language
- English
- Pages
- 14
- File size
- 1.3 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 2 · Read text
ATTENTION
When purchasing a stereoscopic cameras be sure to check it for completeness, be sure that there are shop
stamps, seller's signature and date of sale in the Guarantee Certificate.
Prior to operate the camera, read through enclosed Operating Instruction carefully.
Keeping of all pointed in it rules will ensure the reliable operation of your camera.
ATTENTION!
To prevent double-exposition of the stereocouples it is necessary to wind the shutter lever completely until it
stops.
CONTENTS
1 General . . . . . . . . . . . . .4
2 Specifications 7
7.3. Operation of the camera with electronic
3 Delivery set 8 pulse bulb .28
4 Design of the camera . . . . . 7.4. Completion of the camera operation . . . . .30
5 Preparing for operation . . . 12 8 Assembly of stereoscopic slides . . . 32
6. Attaching belts to the case slides and to the 9 Some helpful hints 35
camera 20
10. Storage 38
7 Operating procedure 22
11. Troubles and remedies . . .39
7.1. Automatic operation mode 22
12. Acceptance certificate 40
7.2. Manual operation mode . . 24View original page 2Page 3 · Read text
1. GENERAL
The stereoscopic photography will discover for you a new world of exciting and creative activity. Three-
dimensional color pictures will produce for you a vivid effect of presence in scene. The stereoscopic camera
"FED-stereo" (hereinafter referred to as camera) is designed to permit the amateurs to take stereoscopic
photographs in quantity of 21 stereoscopic couples with the exposure size of 24x30 mm on a standard 35 mm
photographic film.
The camera is manufactured in two models: "FED-stereo M" and "FED B-O-Y stereo", "FED B-O-Y stereo"
differs by the following:
- more precise operation of the automatics and shutters;
- more precise matching of the pictures of both channels; depth scale of the best stereoscopic view;
- another distance numbers on the distance scale;
- diaphragm number "5,6" with exposition time "B",
- improved design of the film sensitivity setting mechanism.
Cameras may be manufactured with distance scales, expressed in meters or in meters and reef.
Reversal and negative black-and-white or color film can be used when taking stereoscopic photographs.
A photographer may use a developed reversal film to make
stereoscopic slides, the purchased or self-made stereoscopic frames
being used for this purpose. A negative film can he used to make
pictures on photographic paper to use them as photographs of a
common type or stereoscopic couples. Speaking a little about a
stereoscopic photography. Two identical lenses in the camera permit
a photographer to make two discriminated flat images on a film,
these two images forming a stereoscopic couple which can be
projected on a screen through use of the stereoscopic diascope
"ETUDE-stereo" thus producing a three-dimensional image picture.
In fact, a man sees the surrounding objects in as much as similar manner due to stereoscopic visual perception
of his own (see the diagram).
Physical nature of a stereoscopic visual perception is as follows. Either eye of a man projects, through its
crystalline lens, a flat image of the object seen onto its retina. Since the eyes are set apart through a certain
distance (basis), the two images of the object being viewed will be presented in a discriminated form (B'A' =
B"A"). Image discrimination is a result of the distance difference regarding different points of the object being
viewed.
This image discrimination is percepted by the optic cells of a man's central nervous system in a form of the shift
of different points scattered in space and viewed in depth. The camera is provided with a paired shutter-
diaphragm unit arranged behind the camera lenses. The shutter is wound and the film is transported by means of
a common release lever.View original page 3Page 4 · Read text
The camera is provided
with interlocking for the
release button and for the
shutter winding
lever. This provision is
made to prevent a mis-
operation of the film
transport mechanism
(overlap of the
stereospcopic couples).
Arrangement of the stereoscopic couples is shown in the figure. Provision is also made for interlocking of the
release button when the camera operates in an automatic mode under unfavorable illumination condition. To
permit fine setting of the exposure of a stereoscopic picture there is an illuminated exposure-limiting frame
within the field of vision of the viewfinder. The camera is provided with a self-resetting counter of the
stereoscopic couples. To facilitate the assembly procedure, one of the exposure frames has a match mark.
2. SPECIFICATION:
Automatic operation mode: exposure (s) and
Exposure size: mm 24X30 stop ratio from 1/30 and 1: 2.8 - to 1/650 and
1:14
Number or stereoscopic couples
obtained: minimum 21 Manual operation mode: exposure, s 1/30 and
'B'
Photograph basis: mm 63.4
Lens stop: from 1:2 8 to 1:11 at 1/30 exposure
Lens: Industar-81 and 1:5.6 at "B"
Focal distance: 38mm ("FED B-O-Y Stereo")
Viewfinder
Maximum relative aperture: 1:2.8 1:2.8 at "B" ("FED - Stereo M') with
illuminated exposure-limiting frame
Focusing range, 1m to 00 (infinity) - from 3.3ft
to 00 (infinity) Synchronization with electronic pulse flash
bulb: "X" contact cell
Mounting dimensions threadless
attachments: 27mm Power source: SR44 type; 1.5 V
Threaded attachments: mm M25.5 5 x 0 5 Stand seat mounting dimensions: 1/4"
Shutter: aperture type Weight of the stereoscopic camera, kg,
maximum: 0.8View original page 4Page 6 · Read text
13 - film sensitivity scale window
14 - range scale
15 - focus depth scale
16 - clip
17 - clip look
18 - stereoscopic couple counter
window
5. PREPARING FOR OPERATION
Remove the camera from the case.
Unscrew the cover 21 (Fig. 4) and insert in its place the cell PII 53 so that the sign " "+" on its body is oriented
outwards (for "FED-stereo" camera). Insert bushing 23 into the cell compartment. Insert the cell SR44 into the
bushing so that the sign " + " on its body is oriented outwards (for "FED-stereo M").
Fit the cover back in place.
19 - transport mechanism release button
20 - stand attachment thread
21 - cell compartment cover
22 - cell (power source)
23 - bushing
CAUTION!
It is not allowed to use the cell SR44 for the camera "FED-stereo" and the cell PII 53 for the camera "FED-
stereo M" since this may increase errors of picture taking procedure. (webmaster: can't tell if the battery is PLI
53 or PII 53)
Check the power source for its serviceability.View original page 6Page 7 · Read text
For this, set the mode selector
6 (Fig. 1) to position A. Turn
the disk 12 (Fig. 3) to adjust
the sensitivity level for 800
units to ROCT/ISO scale, then
turn the shutter lever 2 (Fig. 1)
to wind the camera shutter.
Direct the camera at some
bright object (such as window
or lamp) and gently depress the
release button. Interlocking
action of the release button
indicates that the power source
has been fitted in its
compartment incorrectly or has
become faulty.
Pull up the rewinding head 11 and, while holding it in this position remove the rear cover 7 from the camera as
shown in fig. 5 by solid arrows. Load the cassette 24 with a film in the camera and release the rewinding head
down.
Insert the head end of the film under
the spring clamp of the receiving coil
25 (Fig. 6) and rotate the receiving coil
by its knurled part or turn the winding
lever to pull the film along as far as its
perforated edge catches the teeth of
both rims of the transport reel.
24 - cassette loaded with film
25 - receiving coil
Fit the edge of the rear cover of the camera into a slot provided in the case from the side of the winding lever
and, while turning it as shown by the dashed arrows in Fig. 5, press it tightly to the case body until it clicks in
place. When doing so, take care that the cover ribs do not touch the camera shields. After ensuring that the
camera is tightly closed, do as follows. To wind up the exposed part of the film and to set the counter of the
stereoscopic couples to position "1", wind the shutter lever until the winding lever is interlocked. Now the
camera is ready for taking pictures of the first stereoscopic couple.
To facilitate handling of the camera, the shutter winding lever has two position working positions and
transporting positions. As set to the working position, the end of the lever extends beyond the shield of the
camera. To shift the lever from the working position to the transporting position, press gently its extending
part.
Turn the disk 12 (Fig. 3) to set up the required film sensitivity index. Films sensitivity reference table is given
below.View original page 7Page 8 · Read text
ROCT units
ROCT/ISO units (after 1987)
(before 1987?
16 16 - 20
22 25
32 32 - 40
45 50
65 64 - 80
90 100
130 125 - 160
180 200
250 250 - 320
350 400
500 500 - 640
700 800
When- using a film with a sensitivity indicated in DIN system, use the sensitivity conversion table 10 (Fig. 2)
provided on the rear cover of the camera.
6. ATTACHING BELTS TO THE CASE AND TO THE CAMERA
The camera is equipped with a system of carrying belts (one long belt and two short belts', two clasps, clamps
and stiff cover. Link the belts as show in Fig. 7
By suitably shifting the two clasps along the long belt, adjust
the camera for height so that the short belts are long well
enough to permit the camera to be held at the eyes level
during photographing. When carrying the camera in the
case, the clasps are pulled down along the long belt so that
the short belts do not cause obstacles to placing the camera
in the case (Fig. 8).
Fasten the case with a zipper. As desired, a photographer
may adjust the belts in other way to make another
combination of belts most convenient to his own taste as
shown in Fig. 9.View original page 8Page 9 · Read text
7. OPERATING PROCEDURE
7.1. AUTOMATIC OPERATION MODE
Remove the protective cap from the lenses. Set the mode selector 6 (Fig.
10) to position "A". . Select an object for photographing and set the
required distance range rotating the range scale 14 (Fig. 3). While observing
through the viewfinder the exposure boundaries (those outlined by the
illuminated exposure-limiting frame 26), depress gently the release button.
If the object intended for photographing is l - 2 m (33 -6.6 ft3) away from
the camera, the exposure boundaries will be limited by the upper edge of
the frame 27 by the side edges of the frame 26 and by the lower edge of the
viewfinder field of vision (shown in Fig. 11 by a dash line). A stereoscopic
effect in this case will be enabled within the exposure part limited by the
frame 27 and by the lower edge of the viewfinder field of vision. The
automatic mechanism of the camera will assure the required picture taking
procedure.
If illumination intensity is low, the release button will be interlocked and
the shutter will not operate ("low illumination' interlocking).
CAUTION
Do not apply force when handling the camera with the
release button interlocked, because this may cause
damage to the camera. After taking picture of the first
stereoscopic couple and any other odd-number
stereoscopic couple, push once the winding l ever to a
stop. After taking picture of the second stereoscopic
couple and any other even-number stereoscopic couple,
push the winding lever to a stop thrice, the release button
being interlocked during the first and the second winding
cycles to prevent accidental overlap of the exposures.
CAUTION. To ensure a failure-free operation of the camera, remember to check, before releasing the button,
that the shutter is wound to a stop (the winding lever is interlocked) Only then depress the release button. If the
release button remains interlocked in the automatic mode, it means that illumination intensity is low. The
counter of the stereoscopic couples indicates the number of the stereoscopic couples photographed (black points
and numerals) as well as interlocking of the winding lever because of being under wound (red symbols without
numerals).View original page 9Page 10 · Read text
7.2. MANUAL OPERATION MODE
28 - range scale index
29 - marks of the best stereo viewing range
A photographer may operate the camera in manual
mode as desired or when the power source of the
camera is not available. In this case, set the mode
selector 6 (Fig. 10) to any desired position, except
"A". When setting the values "2.8" "4" and so on, the
shutter executes the exposure of 1/30s with a lens stop
corresponding to the number set.
When photographing the objects which are well extended in depth or when photographing a series of objects
found afar at various distances, use the focus depth scale 15 ( Fig. 12).
The focus depth scale consists of two diaphragms which are symmetrically arranged relative to the range scale
index 28 (Fig. 12). When focusing the camera lenses, the focus depth scale indicates on the range scale the
maximum and the minimum distances from the camera within which limits of: the image wilt be of good quality
with any lens stop set during photographing.
For example, in Fig. 12 you may see that with the lens focused at 3m (10 ft ft) distance with the lens stop set to
8, all the objects found within 2 to 5 m (6.6 -16.5 ft) away from the camera will produce a sharp image on the
film as developed. With the lens stop set to 16, the objects found within 1.5 m (5 ft) to the point of infinity will
produce a sharp image on the film.
White marks 29 on the focus depth scale indicate on the range scale distances from the camera to objects found
within the very close and the most remote shots when focusing the camera lens at the required range. Within
this range of distances, a stereoscopic effect will be the most expressive and the very close to the natural
perception, when viewing the stereoscopic. image. set up the best conditions for the stereoscopic effect
perception, it is desirable that boundaries of this range (boundaries of the best stereoscopic viewing) are to be
within the limits of the focus depth. From this point of view, the most convenient combination of parameters, at
photographing, is 6.5 m (21) ft) distance set with the lens stop set to 5.6 m (or any larger number); in this case,
indicated boundaries will mark the space of objects found within 3 odd m (10 ft) to infinity and will coincide
with boundaries of the sharp pictured space.
A photographer may set the required lens stop number only when the camera is in the manual mode of
operation. However, it does not mean that one should refuse the automatic mode of operation. Long-term
practice of operation with the camera "FED-stereo" demonstrate that at any set of exposure values and distances
pictures, obtained by the camera, produce (when being viewed) the fully perceptible three-dimensional image
pictures of high quality.View original page 10Page 11 · Read text
NOTE
It should be noted that afore-said is only true when conditions of viewing of the stereoscopic image imitate
exactly conditions of natural observation of the photographed picture (for example, when viewing stereoscopic
pictures of the a stereoscope which lens focal length is equal to the lens focal length of the camera or when
viewing pictures on a screen through a stereoscope length of the distance be equal to the doubled width of the
image). Otherwise, the really visible limit of the best stereoscopic -viewing may not coincide with the limit
marked by white mark 29.
7.3 OPERATION OF THE CAMERA WITH ELECTRONIC PULSE FLASH BULB
Remove the lock 17 from
the clip 16 (Fig. 3) and
insert there the electronic
pulse flash bulb 30 (Fig.
13). To determine the
required lens stop, use a
calculator built in the flash
bulb. Then use the selector
6 (Fig. 13) to set a lens stop
according to the calculated
value. Detailed description
of the flash bulb operation
is given in the Operating
Instructions for the flash
bulb.
When using the pulse flash
bulbs of old modifications
(cable connected types),
use a special adapter.
IMPORTANT!
To obtain a quality stereoscopic image, the lens stops within 2.8 to 8 are recommended to be set.
7.4. COMPLETION OF THE CAMERA OPERATIONView original page 11Page 12 · Read text
When the counter indicates that 21
stereoscopic couples have been
completed, depress the button 19 (Fig.
14) to disengage the film transport
mechanism.
Shift aside the arm of the rewinding
head, rewind the film back into the
cassette (Fig. 14). Open the rear cover
and remove the cassette with the
exposed film. The film transport
mechanism will be engaged
automatically as the shutter lever is
wound initially.
8. ASSEMBLY OF STEREOSCOPIC SLIDES
To assemble the stereoscopic slides, arrange the photographed film in the same position it has been previously
arranged in the camera (Fig. 15a) with the picture image reversed. To fit the stereoscopic couples into the
frame, cut the couples and reverse them through 180 degrees as shown in Fig. 15b)
Fit the right exposure II and the left exposure II of the stereocouple into the plastic frames as follows. The frame
consisting of two half-frames of different colors (Fig. 16) should be split in two pieces.View original page 12Page 13 · Read text
Insert the stereoscopic couples in one of the half-frames into the slots 3 (Fig. 16) and position them so as shown in Fig. 15c. To facilitate the assembly procedure it is recommended that the half-frames intended for the stereoscopic couples should be of the same color. Move the stereoscopic couple exposure within the slots 3 (Fig. 16) so as to arrange their edges symmetrically to the half-frame windows. Then cover the half-frame 1 with the half-frame 2 and then lock them together. To assure this requirement, before mounting the glasses wipe them with a piece of flannel cloth. To remove fat stains, use a cotton wad moistened with alcohol or other. The stereoscopic exposures should be also clean. To prevent finger imprints and/or scratches on the film exposures, do not apply fingers, forceps or other tools within the zone of the picture image. It should be borne in mind that the quality of a stereoscopic effect depends largely on the quality of the stereoscopic couples assembly. NOTE: The stereoscopic frames are not included in the camera delivery set. These frames should be either purchased or made by a photographer using a solid cardboard for this purpose. 9. SOME HELPFUL HINTS When taking pictures, a photographer should take into to account some specific features typical of the stereoscopic exposure make-up procedure It is strongly recommended that the film exposure should include within its field of vision the objects located at different distances relative to the camera and relative one to another, i.e. the scenes with a deep background. The least stereoscopic effect is produced by the pictures of a long shot (small-scale pictures). To make such pictures more vivid, bring some picturesque features into the foreground of the scene such as flowers, bushes, grass, etc. However, these features should not be located close to the exposure edges (left or right side) they should be brought possibly close to the exposure center where the stereoscopic effect of close shots is' more stressed. The best stereoscopic effect is produced when photographing the objects found within 2 to 10 m (6.6 - 33 ft ) away from the camera Handle the camera with care, do not apply excessive force to it, protect it from dust. When preparing the camera for operating, push the shutter winding lever to a stop, otherwise the lever will not return to its initial position which is an indication that the shutter has not been wound. Do not depress the release button until the film is completely transported. Rotation of the rewinding head, as the shutter lever is being wound, is an indication that the film is being transported normally. When taken pictures with use of the light filters, pay a due regard to a ratio power of the filler in use, the correction factor being introduced by suitably varying the film sensitivity degree. The procedure for taking pictures in an automatic mode applies to most frequent medium illumination of the objects (such as those that are seen age against the snowy background, sky or dark green) introduce a correction factor by changing the degree of the film sensitivity by 1-2 division (decreasing it for the first two cases and increasing it for the last case). In order not to forget the actual sensitivity of the film loaded in the camera, it is recommended that the sensitivity indicated on the film packing box should be cut out and placed in the pocket on the rear cover of the camera where the sensitivity conversion table 10 is provided (Fig. 2).View original page 13
Page 14 · Read text
Remember the actual value of the film sensitivity.
When taking pictures against a background of a light source, use a lens hood.
To extend the service life of the power cell, when taking pictures outdoors during freezing weather, hide the
camera under a coat (if temperature is below 0 degrees C) and take it out only when taking pictures. If required,
clean the optical surfaces of the lens and of the viewfinder by gently wiping them with a piece of flannel cloth
or with a cotton wad slightly moistened with alcohol. To remove dust, use a brush.
10. STORAGE
The camera is a sophisticated optical mechanical device. It requires a careful handling and should be kept
clean. Protect the camera from humidity and sharp temperature variations. Keep the camera in the case - with
the protective caps fitted on its lens and shutter release if possible.
If he camera is kept inoperative for a long time, remove he power compartment and keep it separate from the
camera.
11. TROUBLES AND REMEDIES
Trouble Cause Remedy
- remove the power cell from
The power cell is faulty -
the compartment, rearrange its
polarity is set incorrectly when
polarity and load it back (see
loading the cell
Fig. 10)
As set to automatic operation
mode, the camera shutter fails
- replace the power cell with a
to operate even though the - the power cell is exhausted
new one (Fig 10)
picture object is brightly
illuminated.
- surface of the power cell or
- brush slightly the surface of
contact in the cell
the power cell or contacts in the
compartment has become
cell compartment
oxidized
As the shutter lever is being - Open the rear cover of the
The film fails to be transported
wound, the film rewinding camera and reload the film
due to its improper loading
head stands still properly (see Fig. 14)View original page 14From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.