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The experience of PC-4 and CPM-1 use for 
processing of large- format spectral images showed 
that they are suitable not only for making colour 
composite negatives and prints, but also for 
preparation of scaled photomosaics and photosketches 
for the plane areas. 
Due to the fact that the multispectral satellite 
images can not have the scale adequate to the 
standard file of scales for cartographic 
documents,there is a need to make colour composite 
scaled photomosaics on compositing devices. So after 
the analysis of survey data black-and-white prints 
from original spectral negatives with marked required 
margins of the needed scale are produced. Then the 
indexes of enlargement for making scaled spectral 
positives are calculated taking into the account the 
scale of original negatives, magnification ratio of 
compositing device and deformation indexes of 
positive and colour photo materials. 
After three spectral black-and-white scaled 
positives are made, the next step is to obtain on the 
compositing device colour composite negative within 
the margins of the map in required scale and then to 
make by contact method a print of scaled photosketch. 
Using that technology by multispectral space 
photosurvey data of MK-4 camera, you can make colour- 
composite scaled photomosaics at the scales of 1:1 
000 000 1: 500 000, 1:200 000, 1:100 000, 1: 50 000. 
A possibility of a preparation of colour 
composite photomosaics on the compositing instruments 
without application of rectification process is 
connected with the fact and the proceeded analysis 
confirms that the major part of space spectral images 
have slight declination angles not more than + — 1—2 
degrees. 
In the rectificaction of the image by control 
points their coordinates must be corrected for Earth 
corrections are determined by a well-known formula: 
the terrain . These