230 
These space cameras represent both for panchromatic and 
for multispectral photographs a complete system for pho 
tographic remote sensing from space with a gradation of 
parameters fulfilling' the resolution range from 5 to 20 
meters i. e. between the airborne systems and the space 
scanners. 
Figure 1 gives the relation between the geometric and the 
spectral information content of the modern photographic 
systems. With regard to the geometric and the spectral 
resolution the new multispectral camera MK-4 arranges 
between the well-known multispectral camera MKF-6 and the 
high resolution camera KFA-1000 and like this it contains 
the advantages of both cameras. 
2. PROCESSING AND EVALUATION OF SPACE PHOTOGRAPHS 
The processing of space photographs takes place both by 
means of optical-analogical methods using modern photo- 
grammetric technology (DICOMAT, PLANICOMP) and by digital 
methods. In case of digital image processing (image data 
transformation, classification) including digital geoco 
ding and introduction of remote sensing data in the digi 
tal information systems there is a need for digitalization 
of photographs. Tab-le 2 gives the data amount in result 
of the digitalization of the mentioned above photographs. 
Figure 2 shows the digital data amount for further samp 
ling intervalls and the spatial resolution usable after 
the digitalization. From this we can recognize in which 
situation the high geometric resolution of original pho 
tographs is impossible to use completely. 
When we accept the relation (Report, 1984) 
R : A - 2,0 
between the equivalent photographic resolution R and the 
sampling element A than the following smallest sampling 
intervalls are necessary for the preservation of the full 
rie information potential: 
or KAP - 
350 
: 20 ym 
KFA - 
1000 (PA), KATE-200, 
KAP - 
100 
: 10 
MK - 
4 
: 5 
MKF - 
6 
: 3,5