American Cinematographer - December 1960 - 26
Filming The Behavioi
By
JOSE
VINCENTE
SCHEUREN
Dept, de Cine y Laboratorio de Fisiopatologia,
Institute Venezolano de Investigaciones Cientificas,
Caracas, Venezuela.
FIG. 1-Complete photographic and sound recording set-up in I.V.I.C. s
Cine Dept. From left are: Ampex tape recorder, oscilloscope, and
Mitchell NC 35mm camera mounted vertically over microscope. (All
photos are by the author).
"actor" ever to "talk"
for a motion picture is the hookworm, which is
the subject of "The Hookworm Speaks," a documen¬
tary film recently produced for I.V.I.C. (Institute
Venezolano de Investigaciones Cientificas) in Cara¬
cas, Venezuela. The film, which screens for 14 min¬
utes, was shot on 35mm Eastman Color Type 5248
film and describes the scientific research conducted
on the subject in the Institute by Drs. Marcel Roche,
Carlos Martinez Torres, and Leon Macpherson.
The main actor in our documentary film is the
Hookworm (Ancylostoma caninum), a tropical par¬
asite which enters the dog body and produces ane¬
mia. Man is infected with a similar parasite, called
Necator americanus. The length of the Hookworm
is about 10mm and its diameter less than a milli¬
meter.
PROBABLY THE SMALLEST
Mitchell 35mm Camera Used
FIG. 2-Shown here is method by which
mounted over microscope. Note extension
camera and working lens. Technician in
unique equipment through which sound
recorded in sync with the picture.
the Mitchell camera was
tube interposed between
foreground is adjusting
created by parasite was
The equipment used to photograph this subject
was a Mitchell NC 35mm camera with special exten¬
sion tubes, which permitted working very close to
the subject through the microscope. Although the
documentary shows the original methods devised by
I.V.I.C. scientists for studying the Hookworm, in
this article reference is made only to the microcine¬
matography itself.
In order to be able to photograph through the
microscope with a motion picture camera, it was nec¬
essary to mount the camera on a special base (Figs.
FIG. 3-Closeup of equipment referred to in Fig. 2
in which silver microelectrodes connected to the blood
and saline solutions containers in which the hookworm
has been introduced, are connected to a special highgain amplifier and the tape recorder and oscilloscope
shown in Fig. 1.
American Cinematographer - December 1960
Table of Contents for the Digital Edition of American Cinematographer - December 1960
American Cinematographer - December 1960 - 1
American Cinematographer - December 1960 - 2
American Cinematographer - December 1960 - 3
American Cinematographer - December 1960 - 4
American Cinematographer - December 1960 - 5
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