EVALUATION OF THE ADVANCED TILT TOP LIGHT TABLES

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A000300010005-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 5
• Document Creation Date: December 28, 2016
• Document Release Date: July 2, 2004
• Sequence Number: 5
• Publication Date: December 27, 1966
• Content Type: MF

Approved For Release 2004/07/29 : CIA-RDP78B04770A000300010005-4
IPO/OSB/N.-l9O-&,r.
27 December 196u
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'VF~A\ TDUM FOR: Assistant for Technical Development, NPIC
,'IPr,'F PION:
i'i?i ~ T:
Evaluation of the Advanced Tilt Top Light Tables
n. th the
li t tables were evaluated
Pho1.a,,raphic Analysis Group over a two months' periots The
lig1t table was found to be unsatisfactory except for the light
.rcrn. I, was requested that this type of illumination be incorporated
the final design.
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Light Table:
A. The power-assist mode should be eliminated. Fully powered film
transport is desired with the manual mode used as a backup capal..l.ity.
The fully powered operation of the table was not entirely satisfactory
I. that smooth translation of filn.was not available. In addition,
during very slow speed operation, film tension increased to the
point that no movement of the film was possible. Single handwheel
o,)eration was well received. Operation of spooled film in the same
or in opposite directions was advantageous. Independent drive of
ether the front or back film is also desirable.
C
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B. The two outside masking shades were acceptable and should be
apart of the final design. The center shade approach by
was better and should be considered.
C. Film loading and unloading was easy because of the excellent
design of the spool re-lease. It is suggested that this design
be considered for other, future 'sables also.
D. It was not possible to view the entire format when using an
1?-inch film format. Some consideration for either repositioning
tie film-tensioning rollers or increasing the length of the light
source and glass plate cover is necessary.
Declass Review by NGA.
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Approved For Release 2004/x7/29 : CIA-RDP78B04770A000300010005-4
 Approved For Release 2004/07/29 : CIA-RDP78B04770A000300010005-4
SUBJECT: Evaluation of the Advanced Tilt Top Light Tables
E. The lateral drive gear and other gears should be covered to
prevent accidents.
F. Elevation of the lighted surface by an electric motor is an
advantage over manual operation. The noise level of the motor
drive will have to be reduced or better yet, eliminated.
G. Rotation of the light table on the "Z" axis or inclination
thereof is acceptable and necessary considering the variety of
systems used for photography.
H. Overall reduction of weight is a necessity especially since a
small elevating table is being used at present to 25X1
allow use of two of the! 1 A different elevating 25X1
table should be designed if weight reduction cannot be accomplished.
The table should be able to carry two of the advanced 918 instruments.
3. Features of the i t Table, except for the light source
previously mentioned, were considered as unacceptable or did not offer any
advantage over presently available eauinment. Although the positioning of
the film reel brackets ma eliminate film tracking problems, the slotted
bar of the table actually served the same purpose.
4. It is the consensus of PAG that the Advanced Tilt Top Light Tables
will be of value only to one branch which at present uses these instruments
in their normal daily operations. Replacement of the older 918 models
will necessitate a relatively large procurement of these new tables upon
acceptance of a modified version of the Light Table.
Colonel, USA
Assistant for Photographic Analysis
Distribution:
Orig & 1 - Addressee
1 - IPO/PAG/NPIC
1 - PAG/NPIC
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Approved For Release 2004/x7/29 : CIA-RDP78B04770A000300010005-4
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FORM 101 RELACES
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Approved For Release 2004/x7/29 : CIA-RDP78BO477OA000300010005-4
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FORM NO. 101 REPLACES FORM 10-101
1 AUG 54 WHICH, MAY PE p,`%,
Approved For Release 2004/x7/29 : CIA-RDP78BO477OA000300010005-4
 Approved For Release 2004/07/29 : CIA-RDP78BO477OA000300010005-4
Fo r; Release 2'004107(29 is CIA-RDP* 4770 O030'6a9 6005-4 ` `~