Introduction
Large-scale views of small objects and animals, or
full-frame copies of pictures and documents are
particularly fascinating and interesting subjects - and
often important for professional purposes. The
Voigtlander Proximeter for the Prominent and Vitessa
makes the job really simple.
The special advantage of this ideal close-up
attachment is that it permits hand-held near shots with
the camera instantly ready for action - an important
point with live or other rapidly moving subjects. At the
same time the viewfinder parallax error is automatically
corrected, and even at closest range the eye views the
image as at infinity.
These features of the Proximeter system are based on
two firmly connected supplementary lenses. One is a
positive meniscus element for the camera lens and the
other a spheric/prismatic unit to deflect the rays going
through the two rangefinder windows. As a result the
camera lens is coupled to the rangefinder just as
accurately at close range as over the normal focusing
range from infinity to three and a half feet.
Instructions For
Use
The Proximeter close-up attachment is available in two
focal lengths covering the following focusing ranges:
Proximeter I (focal length 38 inches or 95 cm.): 38 to
18 inches (95 to 47.5 cm.)
Proximeter II (focal length 20 inches or 50 cm.): 18
to 13 inches (49 to 32.5 cm.)
Combining the Proximeter I and II produces a focal
length of 13 inches (33 cm.) covering a focusing range
from 13 to 9.5 inches (33 to 24 cm.)
Mounting the Attachment.
Slack off the milled screw at the side of the Proximeter,
push the clamping ring over the lens mount, and tighten
the screw. Make sure that the metal frame of the
Proximeter is parallel to the top edge of the camera.
When using two units together, always mount the
Proximeter II on the camera lens and the Proximeter I on
the front mount of the Proximeter II; never the other way
round!
Field Mask. For shots with the
4 inch (10 cm.) Dynaron f/4.5 telephoto for the Prominent
resp. Dynaret f/4.8 for the Vitessa T a special field
mask is available which is fixed between the camera lens
and the Proximeter (see main pictures).
Aperture and Depth of Field. To
ensure adequate depth of field in the picture, it is
advisable to stop down at at least f/5.6 ot f/8, or when
copying documents even to f/8 or f/11. The tables on the
following pages give the available depth of field at
various apertures and distance settings. See Tables for
Depth of Field Tables (captured as images).
Exposure. The use of the
Proximeter does not call for any exposure compensation.
When working with filters the appropriate filter factor
must of course be taken into account. The filter is
mounted on the outer mount of the Proximeter.
Taking the Picture. Sight the
subject and focus the image within the distance range of
the Proximeter used by means of the camera rangefinder.
The rectangular finder frame shows the exact field of
view for the 2 inch (5 cm.) lens. When taking pictures
with the 4 inch (10 cm.) telephoto lens Dynaron f/4.5
resp. Dynaret f/4.8 the red frame indicates the correct
field of view at a setting of 3' 6" (1 m.), whilst the
yellow frame on the field mask indicates the field of
view with the lens set to infinity.
Code Numbers
(Note: if you are trying to find a specific
Proximeter it will help your search to know which of the
numbers below refers to the one you want.)
Proximeter I for Prominent - 93/185
Proximeter II for Prominent - 93/186
Field Mask for 100 mm. Dynaron f/4.5 - 93/189
Proximeter I for Vitessa L - 93/187
Proximeter II for Vitessa L - 93/188
Proximeter I for Vitessa T - 93/287
Proximeter II for Vitessa T - 93/288
Field Mask for 100 mm. Dymaret f/4.8 - 93/289
Leather case:
for Proximeter Prominent - 90/131
for Proximeter Vitessa L - 90/132
for Proximeter Vitessa T - 90/135
for Field Mask Prominent - 93/133
for Field Mask Vitessa T - 93/136
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