to include a capability of the correlation circuitry to match conjugate imagery. 
12 
In addition to the instrument accuracy requirements stated above, a rel 
atively high dynamic accuracy requirement has been established. This test 
requirement is measured by scanning a precision grid plate at maximum com 
pilation speed and printing on a negative copy. 
Although the equipment was designed mainly for the compilation mode of 
operation, it can also be used as a precision comparator. Likewise, the com 
puter can be utilized to generate the camera station and orientation data necessary 
for the compilation operation from the comparator measurements, camera charac 
teristics, and known geodetic control. In compiling, aircraft position data can be 
used in lieu of normal ground control. In addition, provision is made for the 
operator to introduce data into the computer to take advantage of the adverse area 
routine to assist the equipment through difficult areas of the model. 
CARL ZEISS, JENA, EAST GERMANY. 
The Carl Zeiss, Jena, East Germany company has produced several items 
of photogrammetric equipment since 1964. These are specified below. 
a. The Coordinate Measuring Instrument 3030 - Komess 3030 -Ascorecord 
is a fully digitized precision monocular comparator. It is used in analytical photo- 
grammetry for the automatic reading and recording of rectangular coordinates on 
photographic plates in variable sizes; recordings can be made in clear text and on 
punched tape for direct input into a data processor; during the time of one record 
ing the next setting can be made; an automatic setting device, with a potential set 
ting accuracy in the case of such objects as star images, is being devised at present, 
b. The complete Cartimat Data Processing System is designed to produce 
graphical displays of available digital data; to permit point-by-point plotting as 
well as measurement; to permit automatic recording point coordinates; to permit 
straight lines and curves to be plotted; to permit zero-point determination and 
various coordinate transformations. A special ferromagnetic-type transistorized 
computer may be used on-line or off-line. Direct plotting can be made from 
punched tape, card, or keyboard; plotting of symbols and numerals can be made 
without previous preparation of the storage media; processing can be made of 
punched tapes and cards that carry information in the decimal system; and out 
put of the actual values can be made on tape and in clear text in addition to visual 
readout. Plotting scales may be varied by means of gears and by analytical means. 
c. The Topocart is advertised as a third-order instrument designed for 
plotting, economically, relatively small scale maps (1:100,000, for instance). 
The following characteristics were considered in its design. It should economi 
cally and effectively handle negatives, transparencies, and/or paper prints of 
aerial photography taken with cameras with a broad range of focal lengths and 
format sizes; afford a large image field and a relatively broad observation 
magnification range; incorporate a capability for direct graphic recording of 
the evaluated result on a chart and with a capability of handling variations in 
scale ratios between image and map; it should be simple to operate and should