DATA ON U-2 CAMERA SYSTEM

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B05703A000700020003-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 9
• Document Creation Date: December 28, 2016
• Document Release Date: February 17, 2004
• Sequence Number: 3
• Publication Date: October 9, 1970
• Content Type: NOTES

C-1141/XX-2
DEFENSE INTELLIGENCE AGENCY
WASHINGTON, D.C. 20301
9 October 1970
SUBJECT: Data on U-2 Camera System
TO: Director, National Photographic
Intern-retation Center
ATTN:
Washing on,
Per your request, enclosed is a copy of the data on
the "B" configuration which was submitted for release
to the
1 Enclosure a/s (U)
Acting Chief,
Support Division
Special Activities Office
Declass Review by NIMA/DOD
DIA review(s) completed.
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proved For Release 20041'67/07: CIA-RDP78BO5703A000700020003-4
ILLEGIB
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("B" Configuration)
GENERAL DESCRIPTION - The "B" configuration consists of a
thirty-six inch focal length, eighteen by eighteen inch
split format, high resolution reconnaissance camera
designed to provide continuous still picture coverage
of an extremely large area. Two modes of operation
provide the following ground coverage:
Mode a. Vertical. to right horizon using four lens
positions (V, 1R, 2R, 3R)
Mode b. Vertical to left horizon using four lens
positons (V, 1L, 2L, 3L).
GROUND COVERAGE - Attachments 1 and 2 illustrate the
ground coverage and the lens scanning pattern of each mode.
TECHNICAL CHARACTERISTICS
1. Format - 18 x 18 inches (in two 9 x 18 parts on
separate rolls).
2. Film
Capacity - 6500 feet tvl-n base on each of two roll..
Width - 9 1%2 inch Estar thin base.
3. Lens
Type - Aspheric
F/stop - f/10
Focal length - 36 inches
4. Shutter type - Between the lens.
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5. Lens positions -
3R - 73.5 degrees
2R - 49.0 degrees
1R - 24.5 degrees
V - 00.0 degrees
1L - 24.5 degrees
2L - 49.0 degrees
3L - 73.5 degrees
6. K factor - 50,000 ft.
7. Altitude - K-factor plus altitude from frame titling data.
DATA PRESENTATION - The data recorder is comprised of a
double lens housing assembly and an instrument housing
assembly. The instrument housing contains a four-digit
resettable counter and a manually wound twenty-four hour
clock. There is space on either side of the counter to
write in additional data such as date, flight number,
etc. The vertical indicator light assemblies expose.a
round dot on the outboard edge of both film strips each
time the oblique head is vertical. There is a right and
left oblique position indicator unit, one for each film
strip. The data recorder information and film format are
illustrated in attachment 3.
IMAGE ORIENTATION -
1. Film Negative:
a. The camera exposes an 18 x 18 inch area on twc'lengths
of 9 1/2 inch wide thin base film moving in opposite
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directions across a vertically mounted platen. The lens
is mounted with it's optical axis parallel to the platen,
and the image path is bent 90 0 at the exit pupil by a
445? mirror. The lens and mirror assembly rotates on a
horizontal axis which passes through the center of the
inclined mirror and the platen.
b. The lens-mirror.combination reverses the. image
0
end-for-end and side-to-side. When matching halves are
viewed emulsion up with the data block at the top, the
image on a vertical exposure is oriented properly facing
toward the line of flight.
c. Obliques to the right will be facing 214.5?, 490
and 73.5? to the right of the flight path and left
obliques will be inclined similarly to the left.
d. Details of the format presentation and recorded
data are shown in attachment 3. The sides of the format
do not appear perfectly straight on the negative because
of the concave distortion produced by the dished contour
of the platen.
e. Positive transparencies contact printed emulsion
to emulsion are'in proper orientation when viewed through
the back, emulsion down. For proper orientation it is
necessary to expose a contact paper print with the negative
back facing the print. Projection printing is oriented by
projecting back of negative to print emulsion.
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2. Ground Orientation - The designation
tl9R11
film covering the right half of the ground image and
"9L" for the film covering the left half of the ground
image. The physical position of the film in the camera is
opposite to this designation when viewed from lens end,
facing forward.
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MAXIMUM LATERAL COVERAGE
SEQUENCE OF LENS POSITIONS - MODE A
GROUND COVERAGE PATTERN - MODE A
GROUND COVERAGE AND LENS POSITION SEQUENCE - MODE A
ATCH 1
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GROUND COVERAGE
PATTERN - MODE B
SEQUENCE OF
LENS POSITIONS -
MODE B
GROUND COVERAGE AND LENS POSITION SEQUENCE - MODE B ATCH 2
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LENS SERIAL NO. (INBOARD)
,,CAMERA SERIAL NO. (OUTBOARD)
FLIGHT DIRECTION ARROWS
OBLIQUE POSITION INDICATOR
, 01 ; > a TV
CLOCK
DATE
EXPOSURE NUMBER
. Data Presentation
Atch 3
M I cc
7
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