SUMMARY 
The KC-1, its modification to the KC-1B and KC-4, show the approach 
engineers in the United States are taking to supply mapping cameras capable 
of supporting modern photogrammetric programs. In the case of the KC-1B 
and KC-4 modifications, the reliable characteristics of the older KC-1 were 
retained, both for the sake of economy and because they were adequate at 
that time, while certain geometric features were improved and the Geocon I 
was developed. 
The design of the KC-6A camera is now in progress. Its function is to meet 
the ever-more critical photographic mapping requirements soon to be proved 
by flight tests. 
Finally, a brief discussion of the vidicon cameras has shown some of the 
techniques being used by American scientists to develop remotely controlled 
sensors for exploration in space, sensors which will obtain and relay significant 
photogrammetric information to earth.