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SF-2026-000861UnverifiedDeep State & Intel Agencies

Background on Unidentified Flying Object Photographs Taken by Ralph L. Mayher

This two-page CIA record, released via the CIA Reading Room, concerns photographs of an unidentified flying object captured by Ralph L. Mayher on 16mm movie film in 1952. Obtained following a telephone request dated 6 November 1957, the document forwards prints (marked 'A' and 'B') for a 30-day retention period and describes the processing chain: original 16mm movie film, from which prints and successive 4x5 and 8x10 negatives were produced. Print 'A' is an enlargement of the original film strip, while print 'B' is a blow-up of an 8x10 negative. Technical background states the camera was a 16mm movie camera with a 63mm lens shooting 25 frames per second at f/2.7 aperture on fast panchromatic film. The object's altitude was estimated by the source and other observers at 2,000 feet, with a maximum camera angle of about 45 degrees. The UFO reportedly had the shape of a saucer — described as a rotating oblate spheroid that appeared to flatten as speed increased — was bright orange, and remained in view for about three minutes. Approximately 2.5 seconds elapsed between the first and sixth images. The document notes the original negatives were held by the Air Force and that the source would loan available negatives for two weeks.

cia.govIncident 1952Discovered Jul 4, 2026239.1 KBdocument
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Description

A declassified CIA document describing photographs of an unidentified flying object filmed by Ralph L. Mayher in 1952. It details the photographic processing chain from 16mm movie film to enlarged prints, and provides technical observational data about the object's appearance, speed, altitude, and duration.

Claims

  • Ralph L. Mayher photographed a UFO on 16mm movie film in 1952.

    90%
  • Ralph L. Mayher photographed an unidentified flying object on 16mm movie film in 1952.

    85%
  • The original negatives were held by the U.S. Air Force.

    70%
  • The original negatives were held by the Air Force.

    70%
  • The object appeared as a bright orange rotating oblate spheroid (saucer shape) that flattened as speed increased.

    60%
  • The UFO's altitude was estimated at two thousand feet by the source and other observers.

    60%
  • The object was bright orange and remained in view for about three minutes.

    60%
  • The UFO was estimated at an altitude of 2,000 feet and was in view for about three minutes.

    55%
  • The object appeared to have the shape of a saucer — a rotating oblate spheroid that flattened as speed increased.

    55%

Events

  1. Dec 31, 1951

    Mayher UFO filming

    Ralph L. Mayher photographed an unidentified flying object on 16mm movie film in 1952.

  2. Nov 5, 1957

    Telephone request for photographs

    A telephone request (noted 6 Nov 57) prompted obtaining the photographs which were forwarded for a 30-day retention.

Dates mentioned

19521957-11-06

Keywords

Entities

Extracted text (OCR)
_Fhotographs fe Background on Unidentified Flying.

Case

Object Seen by’Ralph L. Mayher.

1. In atcorda ce with telephone request oade by

-an 6 lov -57.we obtained fron

photographs bg cg of en “fiying object.
The photographs are Torvarded verevith an end bay, be retained for... _-_
30 days,

©
The print oarked "A“ is an enlarged photograph
of the original 16 an wovie strip on which Mr, Mayher took the 9 *_
photos in 1952, The size of the UrO my be gauged in relation

to the perforations on the fila which are of known stundard size,
fhe large print merked="B"-is-an outsized enlargecent mule from. _
a stepped up negative of one of the original frames. —

3. It may be of Interest to know how the caclosed
prints were processed, Pictures vere originally. snapred on 16 on
wovie film fron which-a mutber of yrints were cade, Four by 5
negatives were processed froa these prints, :then 6 dy. 10 negatives
vere processed-from the latter. The three 8 by 10 prints are cone. _
tact prints of the 8 dby_10 regatives. The large print, "B", is a
blow-up of ane of the 8 by 10 negatives, |

h,—.. Background inforsation follows:

5.  Cazera vael vas & 16 wm vovie, focal length of
lens was 63 ma, speed 25 frames per second, Altitude of the U?0,
as estinated by sdOurce end otber observers, was two thousand feet,

Maximus camera angle was éstimated vy source to be 452°... The UFO” -& =

appeared to bave the shape of a saucer, i.e.) ao rotating oblate

' apheroid which séened to Matten out as apeed increased. The UFO .
was in view for about ttree minutes and was of a bright orange. «= -ss—issC*

color, At-the tina the fila was taken the lens aperture of the
canera wae {:2.7. Film emulsion vas fast panchrocatic, Tins
elapsed between photographing the first Image and the sixth icage
(the first being the eesllest at the top of the filn strip) was
opproxirately 225 SOC.”

vindicated that he would be glad to cake
such negativss sg hs bas available on a tvo weeks loan Af. they. would
serves useful purpose. The original megatives are In_alr Force


’ spheroid which seened to flatten out_as apeed incréased... The UD a

The “Photographs are Torvarded herevith ond cay be retained for
30 days.

«
2. The print oarked "A” is an enlarged photograph

of the ariginal 16 aa movie strip on which Hr. Mayher took the .

photos in 1952, ‘The size of the U?r0 may be gauged in relation

to the perforations on the fils which are of known standard size,

The large print marked "BY 1s an outsized enlargecent mede from

a stepped up negative of one of the original frams. —

3. It may be of interest to know how the enclosed
prints were processed. Pictures vere originally snapred on 16 a1
movie film from which a nwober of yrints were cade, . Four by 5
negatives were processed froa these prints, then 8 dy 10 negatives
vere processed from tbe latter. Tte three 8 by 10 prints are con-
tact prints of the 8 by 10 negatives. The large print, "B", is a
blow-up of one of the 8 by 10 negatives.

4, Background inforsstion follows:

5. Casera wei vas a 16 wm rovie, focal length of  _
lens was 63 oa, speed 25 frances per second, Altitude of the UP0,
as eetinated by-sburce end other observers, was two thousand feet, His
Haximun camera angle vag estimated by source to be 45°. The UPO #
appeared to bave the abape of a saucer, i.e.,-a rotating oblate

was in view far about three winutes and was of a bright. orange
color. At the ting the filu was taken the lens aperture of the
camera vas £:2.7. Film emulsion wes fast panchromatic. Nr -
elapsed between photographing the first Image and the sixth Inage
(tbe first deing the seallest at the top of the filn strip) was —-
opproxiratealy .2e5 sec.

. Se indicated that he would be glad to cake
euch negatives 63 ha ba ailable on a tvo weeks loan if. ‘they. would
serves useful purpose. The original regatives are ina

ate FOR RELEASE

‘A

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