Full text: Reports and invited papers (Part 4)

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 
 
	        
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