How to Fit and Detach the Reflex Housing
First set the focusing knob on the camera to infinity. Press down the bayonet catch, 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. 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.
Focusing the Finder Image
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 finder.
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 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 its brightest.
The KONTUR Sports Finder
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 place.
The PRISM FINDER shows a moving subject in its true direction.Mounting and Removing the lens
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 surface.
Manipulation: Depress the button on the front of the reflex housing, 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 and turn the front conponent to the left until the bayonet catch clicks into position.Setting the lens
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.
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 index line.
Depth of Field
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. The shutter speeds can be read off either from the front in the shutter speed window, or from behind on the shutter speed scale. 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 fully.
The mirror inside the housing automatically moves out of the way just before the shutter opens, to allow the light to reach the film.
Exposures with the Self-Timer
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.