TENTATIVE PLANNING FOR PHOTO EQUIPMENT

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP89B00487R000300640051-7
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: August 10, 2011
• Sequence Number: 51
• Publication Date: December 13, 1954
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/08/10 :CIA-RDP89B00487R000300640051-7 . ~~a25X1
i i ~ G
December 13, 195
t~ PLA~I~ PCH# PS?S'0 EQ~TIPlAT
1. Coafigaratioa A.
'J~is will consist of various cos-binations of nose os less standard
aerial photographic equipreat, though selected and put into optimurl
condition. Fos e~au~le:
Coobiaatioa 1. Standard Tri-fiat arraage~eat is crabbing mo~mt wity
sufficient film to last through tbs laegest mission. sc~gether wily t~no
1C-36-type ca~reras, usually with 24-inch lenses, but takias also 12 and
36-inch leases. Fi]a capacity vil]. accor^~odate a]aost aa~lrte coverage
with the 12-inch, about yal! with tye a~-inch and o?ly abrructi c~ae-gnartes~
With 36-inch lenues. Slre t-36's are iatemd~ed a?st.].y roe obli4ae cc~rage
oa either sills of tbs central 6-iaed~ o! t]te Tri-list, bmt can be tilted
ss Warded Prod neat tye vertical to near the horizon. All cycling ri11
up~Y ~ ~~ ?
Ckmbiaation 2. 17te Tri-lMt is s~ep~laosd by tx~ 12-inch ceaseras is
split vertical. 'ate rest Pill be as sboTe. Coverage will be alsost ca~].ete
with tye 12-inch caasaas. 'lltis co~bimution is essential]~y a ~nt].ti-statiaa
installation, with the lotages local lengths used obligrtely. ate miuiatz
is to cover 36?0 miles at altitude.
2. Contigaratioa H.
Ibis will consist o! a single 36-inch (later b&iach) ].ens, givia8
9x18 coverage on 18-inch ride film, xith 6t~i overlap. 'me optical systsa
is led by a cube prism, cycled transversely to live nearly yasisoa to
ltosis?n coverage, though sore restricted transverse coverage can also be
psograssred. She filtt spools will lradle ebcnxt 4000' o! standard film, sad
perlte~+s 7000' of thin base film. 111th the latter (and 36-inch less ), tL~e
coverage can be ~ to 100 along tye lies of lli6ht, it lye lateral
coverage is slightly limited. 'ibis system is intended los reeawssaissaaoe.
I! standas~d film is used, the coverage rill be correspaa~dingl.y limited.
'1ltis camera is ititteadsd to be the rrlrhosse, combining large area
coverage with intermediate scale.
'1'bsse will. also be a charting carry accoopa~cpriag all fligmcts not leaving a
Tri-flat. Plans are not d~efiaitited ss yet, but probably the cyattiag carry
rill talae the form of a ?ri-IMt an a single roll of film. ~-iach film
will probably be used sad alts pirttae rill be peryaps 9-iacyes ~6
tits roll fra^i hosit:on to hosisoa. 'be oblique views rill be tabu with
lotigsr local length leases, syr 6-inch lenses, and flee v~srtical view with
probably a 3-inch wide angle lens. Sits obligor viers will be fed tbr~ough
fined prison. 'Phe slttictters will be standard bet~wsst-t]ts-leas shutters
operated simaltaneous]~r. Site vertical pictures will have 60~ overlap.
,.,
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3. Cantiguratioa C
Ibis Hill consist of a 21K~-i.ach t/20 ?pticezll systesi feeding the sane
magazint arrangement as is Contigaration s. >sotiever, the lil,m sP4cls rill
be sae~eahat smaller . 'I'bis loaag focal leas~tlt systssa is intended for ].erne
scale pictures of limited areas, ~ is pointed by servo, aliga~sd rith the
pilot's periscope sweep. 'i5e pilot looks into his periscope, irhich has a
transverse creep, xith either 25 or Sfi degree yield at ~0- cue glance.
The camera is always pointing to ~daatevar is oa the cross-Tire ct the
periscope. 'fie pilot pushes as ezpcsure bnttoa~ rheaasver he seen aa~rthing
of interest cad brings it to the cross-tire. The camera tbea talcs a set
of pictures around that area, tither 2, or 4 yr 8, with 6t~~ overlap, according
to the pilot's direction.
The pilot either can be briefed oa cleat to photograph troa studies of
the smaller scale photograpl~jr earlier, oar else can si~].y go hunting. 8e
can pick out individual tcaems ar cities, or cover a ricer bane for anent
miles, cad so forth. The caeaera rill shot perhaps 20 times the reface of
what the pilot can glia~se is terms of resolution, and hence the instructions
to the pilot should be in terms of gross detail, and pramineat ].e~ndscape
teatm~es.
The 240-inch oa the average should resolve ob~eets of the or8,er of a
foot in size oa the vertical, up to several feet b4 miles oft the vertical,
to several dozen feet st 100 miles oft the vertical.
Tbere rill be certain ground equipment pa"ovided fa addition to the usual
processing. 1POr esempl.e, a projector rill be prorided for the charting
camera. Collimators rill be parovided for aid in checking focus in the field.
Special films will be used it haze is a serious problem, $long with photo-
~lectric iris or shutter control. All cameras rill have IMC, and will, be
in danmpecl, vibration-filtered aotmts. Only the Tri-lief will have crabbing
coartrol. lIo camera rill have tilt o?atrol. The airplane is svppoaed to
t],y trithin 1 degree of vertical is roll cad pitch, and to maintain a tree
flight line with abort the same degree of pa"ecision.
Cameras rill be theraostated. The film rill be heated and proper humidity
obtained in the back focus space. BSttreme attention rill be given to
keeping the rimdows cl.~r. The highest possible resolution rill alasys be
sought tor, and hopetu7ly, better than 20 lines/ass. line-g~si~d'tila rill
be need men illveniaatioa3 peratts. Vignetting will be aini>sizad. 9l~e
lenses will generally be used at t/8 or slo~rer, e~ccept where illumination
requires meuc3mtin aperture.
Qi eacelleat photographic days it is saticipated that base rill not
be serious over a band 100 miles wide. With the 36-)tech Caetiguratioas B
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s use~lil. strip up to 2U0 Hiles ride caa be expected. ifith the spotting
camera, some results milt be mailable o~r+er s band 250 miles aide.
goMever, ~rertical eo~erage grill ah~cags be desirable !ar aqq caarera, otter
is~orteat targets, or, the gore mearlq rertical, the better.
~t should be anticipated that the pilot msy ha~r+e to s't43' ~ ~~
grass there the Heather t5rca~t has bsea inaccuratl~q predicted. He ought
to bed he clear. 8encesteraate target areas~sbot~l.d be assigaad. ~
stair
Mere detailsd dsscripticns xi.ll be a,~ailable several vrelts iro^i ncw.
J. Q. Be-kez' _.~
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