How to Fit
and Detach the Reflex Housing
First set the focusing knob on the camera to infinity.
Press down the bayonet catch (see top arrow), and place
the reflex housing flat against the shutter speed ring,
so that the upper right-hand cheek on the camera engages
in the locking groove of the bayonet mount (see detailed
view, lower right, above). A slight left-hand turn of the
reflex housing firmly locks it to the camera.
To remove the housing, depress the bayonet catch, and
keep it pressed down. Turn the reflex housing to the
right, and lift off.
The standard equipment of the reflex housing includes
the magnifier attachment shown above. This has a double
purpose. In its vertical position it serves for observing
and focusing the upright screen image. This image is
completely free from any parallax error. When tilted over
backwards it becomes the Voigtlander KONTUR sports
Focusing on the Screen. The screen image, which is
uniformly bright right into the corners of the screen, is
observed through the 5x magnifier lens. To adjust the
magnifier exactly to your individual euesight, point the
camera lens at the sky. Then turn the eyepiece (see
arrow) until the cross on the screen is absolutely sharp.
Leave the eyepiece in this position.
To focus the image with the magnifier, turn the front
ring of the lens mount until the image is dead sharp.
Always focus at full aperture, as the screen is then at
The KONTUR finder is extremely useful for following
moving subjects. After focusing (on the screen or by
scale) tilt the magnifier head back as far as it will go.
You now have a perfect sports finder.
Sight the subject with both eyes open. The eye looking
past the finer then sees the subject in its full size and
brightness, while the other eye sees the outline of the
picture area. This works equally well whether the subject
is in brilliant sunshine, or in deep shadow.
To compensate the parallax error with views closer
than about 6 feet, swing the magnifier head slightly
forward until it clicks into place.
The eye looking into the finder sees two rectangles,
indicating the picture area, against a dark background.
The outer rectangle corresponds to the view of the 100
mm. Telomar. The dot marks the centre of the picture.
The PRISM FINDER
for Direct Screen Viewing
With certain subjects it is better to see the screen
image the right way round. In a case like that, the PRISM
FINDER, available as an accessory, is useful. To change
over, pull the standard magnifier backwards out of the
screen frame, and slide in the PRISM FINDER in its
The PRISM FINDER shows a moving subject in its true
The front component of the 4 inch (100 mm.) TELOMAR
f/5.5 is mounted in a bayonet fitting. This makes the
reflex mirror inside the housing accessible for cleaning
if required. But please remove any dust only with a fine
brush, to avoid scratching the very delicate reflecting
Manipulation: Depress the button on the front of the
reflex housing (see arrow in illustration), turn the
front component to the left or right through 60 degrees,
and remove. When replacing, first align the red index
line opposite the red slot (shaded in illustration) and
turn the front conponent to the left until the bayonet
catch clicks into position.
Distance (top arrow)
The rotating front ring of the lens mount carries the
focusing scale. To set the distance by scale instead of
focusing on the screen, set the appropriate distance
figure above the red index line.
Aperture (centre arrow)
The aperture numbers 5.5, 8, 11, 16 and 22 are
engraved on the conical ring on the reflex housing. To
set the aperture, turn the ring until the required
aperture or f/number clicks into place opposite the red
Depth of Field (lower arrow)
The fixed ring between the focusing and aperture
scales carries the depth of field indicator. To read off
the depth of field, proceed in the same was as described
for the 50 mm. lenses in the camera instructions.
(note: not available online).
To set the exposure time, turn the milled wheel which
protrudes on the right of the reflex housing (see
left-hand arrow). The shutter speeds can be read off
either from the front in the shutter speed window, or
from behind on the shutter speed scale (see arrow in
right-hand illustration). The appropriate speed division
should coincide with the red index line.
These can normally be made withut a cable release.
Push the setting lever to the left to position "M". Then
set the shutter speed, tension the shutter in the usual
way, and depress the release lever on the relfex housing
as far as it will go allowing the shutter to run down
The mirror inside the housing automatically moves out
of the way just before the shutter opens, to allow the
light to reach the film.
After tensioning the shutter and setting the delayed
action mechanism (see camera instructions) (note:
Prominent camera instructions not available online),
dperess the release lever. The delayed action mechanism
is now running down. So, immediately move the setting
lever to position "Z" while the release lever is pressed
down. This keeps the mirror out of the way.
Screw a cable release into the cable release socket,
move the setting lever to "Z" and set the shutter to "B".
Press down the shutter release lever on the reflex
housing as far as it will go.
This moves the mirror out of the way while the shutter
is still closed. Open it for the exposure in the normal
way by pressing the cable release.
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