The “SKF-1” system,
intended to obtain photographic stereoscopic images and is a product
born from the technical and industrial cooperation between the firms
CFC Novacon do Brasil and Fotopribor of Ukraine. It is a result of a
painstaking research among all known stereoscopic fundamentals proposed
in the world technical press, and the first item of a full stereo
proposition, carefully studied and experimented by the
Moscow Science Academy, and evaluations took around by CFC Novacon,
based on forums of ISU (International Stereoscopic Union) Netherlands,
and from SCF (Stereo Club Français) France, We can dare say that
our full proposed system is: THE BEST AND MOST AFFORDABLE PROCESS TO
PERFORM THE REAL HIGH QUALITY 3D!
The “SKF-1” basic
system is conceived towards amateur dreams to be introduced himself in
the 3D world, at low budget, using his already own 35mm SLR cameras
(ZENIT or alike). The equipment can be used with all types of films
available; color slides, color negatives, and B/W of both types.
The complete set is
composed of a beam splitter adapter to the
objective and a set of coupling oculars intended to form the
The “SKF-1” is
intended to be used between 2 to 10 meters (6 to 30 ft), this, because
as all existing equipment, the stereoscopic effect is anomaly
exaggerated at distances closer than 2m and is lost above 10m.
homothetic points (identical points in the two stereo
images) taking pictures at 2m from the object
Viewer amplifying (X)
Weight (uncased) (kg)
The “SKF-1” was
developed to render best results with “HELIOS-44” 58mm
F.L. lens. With other objectives of 50mm F.L. results will be slightly
lesser than optimum.
In all lenses
The splitter only
allows diaphragms in the range f/2 to f/8
Keep the splitter off
Remove the diffuser 1
(pic. 2) the slide picture sample, and the spring
3. In its place put the frame 3a
Elect the right
coupling ring 4 and screw it into the objective filter
On the formed unit,
thread now up to the end, the ring 5 (pic. 1).
Put the splitter on
the unit and go to the maximum position you can
keep the splitter with its greater dimension in the same sense of the
greater picture dimension of the camera. Now, tighten the set,
unscrewing the ring 5 at the direction of the splitter.
The outfit is now
ready to be used. You will see two images in the
viewfinder. Focus and expose as usual.
If your camera has no
exposure meter, or have an external one, put the
ISO value the half stated on the film. This is due the system absorbs
near 1.7 times the available light.
You will see in “How
it Works”, that best results are obtained at f/4
.When needed diaphragm f/2 or f/2.8, it is absolutely necessary the use
of the “limiter-sun-shade” nº 6 (pic. 1) . At f/ 5,6 or f/8 ,
use part 6. More closed diaphragms, are unrecommended here, once they
obstruct the ray paths in the objective when the splitter is used . So
we recommend in daylight, in general, always slow speed films (no more
than ISO 100) and high shutter speeds.
After some practices
obtained from trial-and-error, you will feel the
merits from “SKF-1” and the charming of high quality stereoscopic
Having by basis the
beam-splitter, place the mask 3 in the splitter openings. (pic. 2).
Mount the yellow
ocular set 7 over the splitter. You have ready to see
the stereoscopic slide viewer.
Each slide can be
seen putting them inn the slot of the splitter.
Individual focusing is obtained by turning to and fro the knob 5.
As all precision
instruments, avoid mechanical bumps, thermal chokes
and to force any element, also, avoid keep the instrument on humid and
The “SKF-1” set is
composed of a central prism and two front surfaced mirrors carefully
placed as is seen in pics. 3 and 4. The device generates a vertical
optical meridian “M” in the camera lens. From two axis emerged from the
two lens sides, two images are formed side by side which have a slight
different point of view. These two axis are dependent from the nodal
point of the lens and its focal length. And determines all the
stereoscopic parameters of the unit. Through pictures 3 and 4, we
appreciate the homothetic image generation by the red and green rays.
The “SKF-1” can also
be used as auxiliary equipment in the macrophotography, this when used
together “JUPITER-9” lens and the two greater rings of the “UTZ-T” or
“MAKROPLETT” sets from “ZENIT” cameras. Now it is possible to obtain a
relationship of 1:2.4 image reduction.
Under special request
the “SKF-1” could also be adapted on several
cameras 2 ¼ X 3 ¼ (6 X 9), 2 ¼ X 2 ¼ (6 X
6), 2 ¼ X 1 5/8 (4,5 X 6). (useful only rectangular format).
Also in all digital cameras whose covering angle be near the 45°.
(as shown in pic. 4)
Besides the “SKF-1”,
there are various other items which compose the “SKF-1” System
viewer “SDV-1” plastic body glass optical lenses.
“RSV-1” adjustable interpupillary glass optical
“SSV-1” simple model.
>De Luxe foldable
table viewer “SSV-2”.
made for macrophotography from ½ ft up to 6
ft (0,15m up to 2m)
equipment can be seen at pics 6 to 12.