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Close-Ups
Because the EXAKTA Varex is a single-lens reflex
camera close-ups can be taken with it simply and easily.
In accordance with optical laws the image distance ( =
distance between lens and film plane) increases, when the
subject distance ( = distance between lens and subject)
decreases. Consequently, when focusing on a subject at a
short distance from the camera, the distance between lens
and film plane must be larger than attained by the
helical focusing mount of the lens. Then extensions
(bayonet rings and extension tubes) must be used. They
are fitted in appropriate combinations, between lens and
camera body (Fig. 1). It is a characteristic of the
single-lens reflex camera that there is no need for
special optical attachments for focusing at short
distances; the ground glass is used at all times for
controlling of sharpness, depth of field, as well as for
composing of the intended picture. The ground-glass
screen image and the final picture are necessarily always
identical and parallax, which often can not be eliminated
at short distances, never exists with the EXAKTA Varex.
Two-in One Adapter
Ring (see Fig. 2)
For the minimum extension increase of 5 mm. a
Two-in-One Ring is available. It is made as one piece. It
fits into the camera after the lens is removed and is
inserted into the front bayonet, so that the red dots on
the lens mount and on the front part of the Two-in-One
Ring come to stand opposite each other. By a short turn
to the right the lens locks into the stop-lever, which
catches with a click. To remove the lens from the
Two-in-One Ring, press the little release button of the
adapter ring and turn the lens to the left until the red
dots are opposite each other again; then the lens can be
removed from the adapter bayonet in the same manner as
removing the lens from the camera. - Inserting the
Two-in-One Ring into the camera is achieved in the same
manner as attaching the lens alone. When the red dots on
the camera and on the back part of the Two-in-One Ring
are opposite each other, turn the adapter to the left,
until the little lever on the camera snaps into
position.
Front and Back Bayonet
Adapter Rings and Extension Tubes
The next extension increase is of 10 mm. and is
attached by the Pair of Bayonet Adapter Rings screwed
together (Fig. 3a). Its handling is the same as that of
the Two-in-One Ring. The Pair of Bayonet Adapter Rings
differ from the Two-in-One Ring mainly in that, they can
be separated.
In order to increase extension additional Tubes must
be screwed between the adapters. These Extension Tubes
are supplied in 3 lengths: 5 mm. (Fig. 3b), 15 mm. (Fig.
3c), and 30 mm. (Fig. 3d). They are sold in complete sets
together with the Pair of Bayonet Adapter Rings. The
Two-in-One Ring is, of course, supplied singly.
Possible
Extensions
Note: the following table has been
scanned as an image.
 Figure
4
Clamping Ring of the Back
Bayonet Ring (Fig. 4)
The Back Bayonet ring has a Locking ring serving the
following purpose: When using the Pair of Bayonet Adapter
Rings and Extension Tubes the lens is often turned on its
axis so that the lens-scales are difficult to read. This
can be avoided as follows: First turn the notch of the
rear bayonet ring to the left (looking on face of
camera), then you can turn the other extension increases
with the lens into the position desired (e.g. when using
the Autocouple Extension Release described on pages 8 and
9, the release buttons of camera and lens must lies
exactly on behind the other). By turning the notch for
handling to the right the lens and the other extension
increases firmly screwed together are fixed in this
position. If the front extensions (front bayonet ring or
tubes) shall be removed from the rear bayonet ring, turn
the notch for handling also to the right, then the
extension increases can be screwed out. When inserting
and removing all extensions with rear bayonet ring,
always seize the notch for handling.
Ihagee Autocouple Extension
Release
In normal practice employing lenses with A.P.D.
pre-setting device first the diaphragm, and then the
camera shutter are released. In normal practice the
button of the Automatic Pre-set Diaphragm lenses which is
situated immediately in front of the camera body release
is first depressed, followed by the actual firing of the
shutter by the camera body release. When employing
Bayonet Adapter Rings and Extension Tubes, however, the
Ihagee Autocouple Extension Release has been produced
specifically in order that the automatic lens mechanism
may still be used. It consists of the following single
parts:
- the coupling rod
- the release part
- the pressure part and
- the push button
According to the length of the additional extension
release part b) and pressure part c) are adjustable and
interchangeable on the coupling rod a).
In actual practice there are, basically, two
possibilities as follows:
- For short extension up to 15 mm.
(Two-in-One ring, Pair of Bayonet Rings with, or
without a 5 mm. Extension Tube) the Autocouple
Extension Release is assembled as shown in Fig. 5. In
this instance, pressure part c) with push button d)
are screwed into the release button of the lens whilst
the pointed contact of release part b) is inserted
into the release button on the EXAKTA Varex. The
distance between the release button and pointed
contact having been adjusted according to the length
of the actual extension, by tightening the knurled
locking screws. In this way the coupling between the
two release buttons is restored, and by single
pressure of the finger on release button d) both the
lens diaphragm and the camera shutter are release
simultaneously.
- For extension from 20 mm. to 60 mm. (pair of
Bayonet Adapter Rings and Extension Tubes) parts b)
and c) must be reversed. In this case, therefore, the
pointed contact of part b) is inserted into the lens
release and the pressure part c) is screwed to the
camera release by means of release button d). Then as
previously stated the knurled screws are tightened and
the camera is then ready for releasing again.
Automatic single pressure coupling is thus achieved as
described above (see Figure 6)
- In order to guarantee perfect functioning, please,
note the following when connecting the Autocouple
Release to the camera:
- When the pointed contact of the release part
has been inserted into the release button, the
pressure part has to be close to the release button
(always mount the Autocouple Extension Release to
the camera with diaphragm wound up)
- Besides, the coupling rod should always be
parallel to the optical axis. This is easily
achieved by turning the lens so that both release
buttons lie in the same direction, also when using
additional extensions. For this purpose the rear
bayonet ring (next to the camera) is fitted with a
locking device (described on page 7).
Important
Note
- Close-up and micro exposures with the EXAKTA Varex
are not only obtainable with the accessories described
in this booklet. For achieving utmost economy in this
field, as well as in other spheres of photography, the
"Vielzweck"-Multi-Combination for the EXAKTA Varex has
been designed. Please ask for information, also
regarding this equipment, the versatility of which you
will find most welcome. We shall be glad to send you a
detailed brochure. Here just a short reference to the
individual groups of the "Vielzweck": For close-up and
magnifier work there is the Bellows Attachment (Fig.
9). Reproductions are conveniently carried out with
the help of the Copying Stand, which, by the way, also
serves as a sturdy table tripod for other purposes.
The Bellows Attachment and Copying Stand combined are
used for photomicrography. Duplicates of small
transparencies, on an optical basis, are made with the
Transparency Copy Equipment. For medical photography,
especially for photographing cavities of the body, the
"Kolpofot" has been especially constructed. It works
in connection with and electronic flash unit.
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