EVALUATION OF THE ADVANCED TILT TOP LIGHT TABLES

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A003000040006-9
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: January 16, 2003
• Sequence Number: 6
• Publication Date: December 27, 1966
• Content Type: MF

Approved For Release 2003/01/28: CIA-RDP78B04747A 0300004000
IPO/OSB/M-19o-66
27 December 1966
MEMORANDUM FOR: Assistant for Technical Development, NPIC
ATTENTION:
SUBJE CT: .
1. RothI (light tables were evaluated
by the Photographic Analysis Group over a two months` period. The
light table was found to be unsatisfactory except for the .Light
25X1
25X1
25X1
source. It was requested that this type of illumination be incorporated
in the final design.
2. Other comments received after evaluation are as follows and concern
25X1
25X1
25X1
Evaluation of the Advanced Tilt Top Light Tables
Light Table:
A. The power-assist mode should be eliminated. Fully powered film
transport is desired with the manual mode used as a backup capability.
The fully powered operation of the table was not entirely satisfactory
in that smooth translation of film 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
operation was well received. Operation of spooled film .in the same
or in opposite directions was advantageous. Independent drive of
either the front or back film is also desirable.
.B. The two outside masking shades were acceptable and should be''
a part of the final design. The center shade approach
was better and should be considered.
C.. Film loading and unloading was easy because of the excellent
design of the spool release. It is suggested that this design.'
be considered for other, future tables also.
D. It was not possible to view the entire format when using an
18-inch film format. Some consideration for either repositioning
the film-tensioning rollers or increasing the length of the light
source and glass plate cover is necessary.
Declass Review by NIMA / DoD
Approved For Release 2003/01/28 : CIA-RDP78B04747A003000040006-9
25X1
25X1
 Approved For Release 2003/01/28 : CIA-RDP78BO4747AO03000040006-9
BEST COPY
Available
 Approved For Release 2003/01/28 : CIA-RDP78BO4747AO03000040006-9
SUBJECT: L'vv11uation of the Advan Tilt ':.. ght Tables
E. The lateral drive
prevent accidents.
3. Features of the Light Table, except for the light source
previously mentioned, were considered as unacceptable or did not offer any
advantage over presently available equipment. Although the
the film reel brackets ma eliminate film trackin o positioning slotte of
bar of the g problems, the slotted
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 models 25X1
will necessitate a relatively large procurement se new tables upon
acceptance of a modified version of the
fight Table.
F 25X1
25X1
Distribution:
Orig & 1 - Addressee
1 - IPO/PAG/NPIC
1 - PAG/NPIC
gears should be covered to
F. Elevation of the lid 'n electric motor is an
advantage over manual ol; h,ise level of the motor
drive will have to be rep ?- ;ter yet, eliminated.
G. Rotation of the light table on tiro axis or inclination
thereof is acceptable and necessary eonsidering the variety .of
systems used for photography.
--.+.L-l L.Lu C1CVCiL111g
.table should be designed if weight reduction cannot be accomplished.
The table should be able to carry two of the advancedi nstruments.
~ r v w
Assistant for Photographic Analysis
Approved For Release 2003/01/28 : CIA-RDP78BO4747AO03000040006-9