A RECOMMENDATION FOR PHOTOGRAPHIC CONTROL EXPOSURES TO BE ACCOMPLISHED DURING EACH PHOTOGRAPHIC MISSION

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP92B01090R002600020053-0
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 2
• Document Creation Date: December 9, 2016
• Document Release Date: August 7, 2000
• Sequence Number: 53
• Publication Date: October 30, 1957
• Content Type: MEMO

Approved For Release 200*/.03/07 ..C.IA-RDP92BO109OR002,A00020053-0
Series A -- TCS-2209-57 ,
oC-81-- 57
Copy / of
30 October 19
MEMORANDUM FOR: Project Operations
FROM: Chief, HTAUTOMAT
SUBJECT:
_e
A Recommendation For Photographic Control
Exposures To Be Accomplished During Each
Photographic Mission.
1. This memorandum is submitted pursuant to discussions
on the 24th of October with Operations representatives, Lt.
2. The unparalleled quality of photography presently
provided by Project Aquatone demands its complete utilization.
To that end HTA requires more photographic information than
is currently available. Precise focal lengths, angles of
obliquity, lens distortion patterns, etc. are examples of
the kinds of information required for quantitative measure-
ments, without which, lengths, widths, heights of buildings
and complexes, and their angular relationships cannot be
determined to the required degree of accuracy.
3. As soon as possible a photogrammetric range will be
established at each base. These ranges will provide in a
most effective manner, the key control data for each mission
regardless of the combinations of cameras, lenses, cones
and magazines used.
4. Specifications for control exposures over photo--
grammetric ranges.
F/L Altitude (200 MPH)
6" (A- 1) not less then 75001
2411 (A-2) not less then 150001
36" (B) not less then 170001
Note: Can be accompli2.ed at either beginning
or end of mission.
Altitudes should be close to those stated
above.
Approved For Release 2001103/07: CIA-RDP92B01090R002600020053-0
U,..
 Approved For Release 2094'/03/07 CIA-RDP 2B01090R00 00020053-0
Series A - TCS-2209- 57
oC-81-- 57
Copy _L_ of
30 October 1977
SUBJECT: A Recommendation For Photographic Control Exposures
To Be Accomplished During Each Photographic Mission.
5. It is necessary to begin flying the control photog-
raphy as soon as possible, even before the photogrammetric
ranges are established and surveyed. When the ranges are
surveyed, all previous missions flown over the range can be
identified and calibrated, thus decreasing the accumulation
of the number of missions for which no precise geometric
data can be obtained.
6. During the control exposures the vertical camera
should be centered over the airfield proper. About 5 ex-
.posures with each camera will be sufficient to permit the
necessary control work to be accomplished.
7. It is recommended that field units be advised by
Project Hq. to fly control exposures during each photographic
mission under the specifications shown in paragraph 4.
25X1A
Approved For Release 2001/03/07 :CIA-RDP92B01090R002600020053-0