NON-TOPOGRAPHIC PHOTOGRAMMETRY, 1972-1976
prefocused at any desired distance down to 6
feet. The 80mm f/2.8 Planar lens has been
deleted from the equipment program. A spe-
cial tripod coupling has been recently intro-
duced. It eliminates side-play and ensures a
good repetition of the camera position after
removal and re-installation of the camera.
Jenoptik. The UMK 10/1318 Universal
Photogrammetric Camera, which was intro-
duced in 1970, has been redesigned and used
as acentral unit in a recently developed UMK
10/1318 Universal Photogrammetric Camera
System. The system is composed of four basic
groups of functional units (metric chambers,
magazines, mounts, and electronic gear)
which can be optionally combined in four
logical combinations. Two versions of the
metric chambers are available; type F, equip-
ped with a Lamegon 8/100 lens (f/8, f —
100mm), and type N, equipped with a Lame-
gon 8/100-N lens. The focusing range of both
lenses is 1.4m to infinity. The Lamegon 8/100-
F lens has distortion less than 12um for object
distances between infinity and 3.6 meters,
while the Lamegon 8/100-N lens has distor-
tion less than 12um for object distances be-
tween 1.4 and 4.2m. The range of tilt of the
camera axis is between -30? and +90° with
clickstops at 15? intervals. The magazine has
two basic designs: one for 13cm x 18cm glass
plates (version P) and the other (version F) for
190mm roll film. Since both designs can be
optionally fitted with a Lamegon-F or a
Lamegon-N lens, the system involves al-
together four types of cameras: two for film
10/1318FF and 10/1318NF) and two for glass
plates (10/1318FP and 10/1318NP). For film
flattening, a vacuum back, similar in design to
those used in aerial cameras, is used and is
connected to an external vacuum system. A
plate adapter frame can be attached instead of
the film magazine, thus enabling 13 x 18cm
glass plates to be used in the film model.
Single and double mounts are available.
Wild Heerbrugg. The P31 Universal Ter-
restrial Camera (f = 100mm, f/8, plate format
4in. X 5in. (102mm x 127mm)) was put on the
market in 1974 and its focusing range has been
recently improved. The P31 is focused at a
standard distance of25m. Sharp images can be
obtained forobject distances between infinity
and 6.5m (for an aperture of f/22 and circle of
confusion of0.05mm). With additional precise
adapter rings, which can be easily inter-
changed by the user himself, the camera can
now be focused on distances of 7m, 2.5m,
2.1m, 1.8m, 1.6m, and 1.4m. The radial distor-
tion of the lens is less than +4um. The P31
operates with 4 in. x 5 in. x 3mm glass plates
and has an adapter for cut film.
41
A most significant improvement to the P31
was announced in July 1975: An interchange-
able super-wide-angle lens cone (Wild 4.5
SAgII) was developed for this camera. The
new lens has an extremely large depth offield,
ranging from 1.5m to infinity for f/22 and a
circle of confusion of 0.05mm diameter (3.6m
to infinity for f/5.6 and the same diameter of
circle of confusion). The nominal principal
distance ofthe cone is 45mm. Glass plate (cut
film) format is 4 in. X 5in. (102mm X 127mm)
and image format is 99mm x 118mm. The
radial distortion is within +4um, and the
resolution (AWAR) at f/5.6 and infinite con-
trastis 70lines per millimeter. This improtant
development was announced for the first time
during the ASP Symposium on Close-Range
Photogrammetric Systems in Champaign in
July 1975 and was enthusiastically received.
Itis expected that this new addition will be on
the market sometime in 1976.
The Wild P32 Terrestrial Camera (f =
64mm, f/8, plate format 6.5cm x 9cm, image
format 60mm x 80mm), which was put on the
market in 1972, can now be mounted on six
types of Wild theodolites by means of special
adapters (T1A/T1, T16, and T2, both old and
new models). All theodolites adapted for the
Wild DI-3 also can be used with the P32. A
40cm base baralso has been introduced for use
in combination with two P32's, permitting
stereoscopic horizontal photographs in the
photogrammetric “normal case.” The bar has
four adapters, making three base lengths pos-
sible: 40cm, 30cm, and 20cm. The base barcan
be rotated around a vertical axis and locked
with a lever. Syncronized release for both
P32's is possible.
The focusing range of the P32 also was im-
proved. The P32 has a fixed standard focus at
25m, which permits sharp photographs down
to a minimum distance of 3.3m (for f/22 and a
circle of confusion of 0.05mm diameter). Any
change in focus between 25m and 2.5m can be
performed at any Wild workshop. If a shorter
focusing distance is required, the P32 must be
modified at the factory in Heerbrugg. The
focusing range then possible is 0.7m to 1.40m.
Once this modification has been made, a
change of focusing within the range 0.7m to
1.40m, a change to 2.5m or more, and a change
back to the range 0.7m to 1.40m can be made in
any Wild workshop.
Zeiss (Oberkochen). No modification or
new data acquisition instruments were intro-
duced since the Ottawa Congress.
Non-Metric Cameras. Although various
types of photogrammetric cameras are
presently available, there is a considerable
use for “off-the-shelf” non-metric cameras as