DEAR(Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002100040050-0
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: December 28, 2001
• Sequence Number: 50
• Publication Date: March 29, 1962
• Content Type: LETTER

Approved For Release 2
DECLASS REVIEW by NIMA/DOD
Approved For Release 2002/06/17 CIA-RDP78B04747A002100040050-0 6/17/98
 Approved For Release 2002/06/17 : CIA-RDP78BO4747AO02100040050-0
? ?? ? ? to propose
telephone 4uotation 7V'~EjjE=--rype 829A Cory~j.arator specially modified for the
-ir-iTf6-r---jj,ijo-o-ls of 70mm film. Used in this application the
be 11 ?
axis) will be 1 mm
c P .,
? ? ? 11
ave
turn of le screw.1
?
of the dial and
5mm travel per
The secondary screw (Y axis) will have 1/2mm pitch', 2-1/2mrn ;lead,
having a ~ multiple thread. its digitizing head will be geared for 500 counts per turn
and the dial will have a least ? ? 11 The stage will advance 2-1/2mm
travel per turn of the Y screw..
Motorized measuring travel of X axis (to left and right of operator) would
be at a rate of approximately 12mm per second. This travel would be across the
width of the f ilm.
Pptical system and light source will be essentially the same as that made
for the ~Type 42ZE Comparator. In this projection system the image ma i gnif i -
cation at the 'screen would be 7-1 /ZX and the instrument should be operated in
There will be adaptation provided for Magnetic
Reading Heads Type o eacn screw. =cwu-ri
1.005mm motion of the stage.
Film stage having manual film advance or 6'' spools of 70mm film will
I ~ - -' means of a solenoid operated from a foot
1-ne pa-778--, of the film
switch. Plus or minus Z* of rotation will be provided for alignment
 of one T)er cent
avs.
WR~Ier receipt of order a",
1-0. days,- net.310 days a,pgi~~
S, this can ?
ie to de ar
isfactory technical solution
111111!!!
be mounted on a
table with,special
i to the rear of this