STUDY TO DETERMINE FUNCTIONAL REQUIREMENTS FOR A MINICARD CAMERA AND SYSTEM TO RECORD SATELLITE PHOTOGRAPHY

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001700090004-1
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 5
• Document Creation Date: December 28, 2016
• Document Release Date: July 16, 2001
• Sequence Number: 4
• Content Type: STUDY

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STUDY TO DETERMINE FUNCTIONAL REQUIREMENTS
FOR A MINICARD CAMERA AND SYSTEM TO
RECORD SATELLITE PHOTOGRAPHY
25X1A
INTRODUCTION
For about five years the idea of a Minicard Camera that would have
a low reduction ratio lens which could be used to record aerial photo- 25X1A
graphy on Minicard Film with minimum resolution losses has been given
thought. have discussed the
idea on a number of occasions over the past several years with
_ personnel; each time pointing out the need for a Minicard Camera
that would make possible the recording of a higher number of lines per
MM, foreseeing the development and ultimate use of aerial photo materials
that would themselves be two to three or more times higher in resolution
then materials being handled five or more years ago. Also. they could
predict aerial photography of much greater scale which would mean that
greater resolution capability had to be achieved. The Minicard image
areas would have to record only partial framed of aerial photography
because the large scale would encompass such large areas that there would
be greater practicality in a system which would reduce the large scale
photography to more usable smaller segments in Minicards.
Each year, for the past few years, it has not been possible to get
action started toward the manufacture of a low reduction ratio Minicard
Camera for various reasons, but finally a contract has been negotiated
which will permit such an undertaking. The contract has been set up in
a form which first calls for a study which will determine what the camera
functions shall be and what geperal systems application can use a camera
having the functions and performance capabilities specified. Accordingly,
this study has been made. The original materials to be used as input to
the camera have been determined and specifications of most of them have
been learned. Much thought has been given to the camera functions., re-
duction ratios, lens-film combination resolution minimum requirements,
platen operation, automatic density determination and exposure setting,
display, etc., functional specifications have been established and re-
ported.
The report has been written in two parts. At the outset of the study
in mid-July, specifications were available on only.the material currently
being used. It was not until a few weeks later that additional specifi-
cationsT_on other material became available; but in the meantime it was
decided to study the problem as it applied to the current material and re-
port this as Part I of the report. Later, when additional material
specifications were made available a Part II of the report would be written.
For this reason it might be appropriate in reading this report to read
Part I rapidly and then read Part II more slowly since the second part does
change much of the first part insofar as measurement and format are concerned.
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STUDY TO DETERMINE FUNCTIONAL REQUIREMENTS
FOR A MINICARD CAMERA AND SYSTEM TO
RECORD SATELLITE PHOTOGRAPHY
- PartI -
OBJOBJECTIVE -
To devise a system for reducing satellite aerial photography
to Min.icards with retention of as much of the resolution and contrast
of the original photograph as possible and to provide a system to
produce and use the Minicards. Also, provide a set of Functional
Requirements for a Minicard Camera to handle this material.
25X1 D
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