The SMPTE Century: Evolution in Cameras and Lenses From 1916 To 2016
The SMPTE Century: Evolution in Cameras and Lenses From 1916 To 2016
The SMPTE Century: Evolution in Cameras and Lenses From 1916 To 2016
net/publication/309056915
The SMPTE Century: Evolution in Cameras and Lenses from 1916 to 2016
CITATIONS READS
3 1,104
1 author:
Laurence Thorpe
Canon USA Inc
39 PUBLICATIONS 87 CITATIONS
SEE PROFILE
All content following this page was uploaded by Laurence Thorpe on 02 December 2020.
TV Camera Developments
While motion picture film was flourishing worldwide,
there began a protracted quest in pursuit of electronic mo-
tion imaging. Scientists around the world were to devote
their lives to seeking the transducer that would transform
optical images into electronic signals that might ultimately
support realtime imaging and realtime transmission of
FIGURE 2. (Left) 1956 Angénieux 17–68 mm zoom; (right) 1958 those images.
12–120 mm zoom. As far back as 1918, Philo T. Farnsworth developed the
electronic image dissector. In 1926, a Hungarian engineer
FIGURE 3. (Left) Bell & Howell 2709 film camera, which was launched shortly before the founding of SMPTE; (center) 1933 Kodak
Special; (right) 1940s Mitchel Blimp.
FIGURE 4. Panavision started developing film cameras in the 1960s. (Left to right) Milestone models: the R-200, the 1986 Platinum, and
the 1997 Millennium.
Kalman Tihan filed a patent for an all-electronic TV that had earlier been developed by Dr. Peter Goldmark of
system. Two years later, he patented a pickup tube tech- CBS. NBC started broadcasting color images in 1953
nology based on a storage principle that produced a signifi- using the first commercially available color TV camera—
cant increase in sensitivity. In 1934, he sold his patents to the RCA TK-40. Mass production of color cameras began
Radio Corporation of America (RCA), and that same year, in 1954 using the updated TK-40A. These cameras used
Vladimir Zworykin of RCA developed the more sensitive three image orthicons and, with their large viewfinders,
Image Iconoscope tube (Fig. 6). weighed almost 400 lb.
Meanwhile in 1932, in the U.K., Electric and Musical In the early decades, TV cameras used lenses of differ-
Industries Ltd. (EMI) began work on the Emitron, basing ent focal lengths mounted on a turret on the front of the
it on experimental work by James McGee and William camera, as shown on the left in Fig. 8 (these were typi-
Tedham. By 1936, cameras developed for the BBC by the cally Kodak Ektar lenses). The camera operator
Marconi-EMI Television Co. Ltd. were used for the start rotated each lens into position and focused it when the
of the world’s first regular “high-definition” TV service in camera was not on the air. Zoom lenses came into
1936. The image orthicon proved far more sensitive than common use in the early 1960s, with the major suppliers
the Iconoscope-based tubes and was deployed as an image being British Rank Taylor Hobson and French Angénieux
transducer for unmanned radio-controlled flying bombs (Fig. 9).
(Fig. 7). In 1953, Vladimir Zworykin at RCA developed the
In parallel with the development of TV cameras, al- small Vidicon pickup tube, and in 1965, RCA introduced
most from the beginning, motion picture film lenses and the four-tube color camera—one 4.5 in. image orthicon
cameras were used to originate TV program material. In and three 1 in. Vidicons. 1954 saw the first SMPTE TV
1947, the first telecine machine to transfer film to video standards dealing with dimensions of slides and opaques
was developed. and image areas for 16 mm and 35 mm films used for TV.
Meanwhile, RCA had grown in stature and in re- The most impressive early TV zoom lens was the 1953
sources and were developing the NTSC-compatible color Varotal III from Rank Taylor Hobson from U.K. In
TV system. NTSC was formalized as the U.S. standard in 1956, Pierre Angénieux introduced the mechanical com-
December 1953—superseding the field-sequential system pensation system, enabling precise focus while zooming,
in his 10× lens released in 1958. Angénieux received a
1964 technical award from the Academy of Motion Pic-
tures for the design of that 12–120 mm zoom lens.
In 1960, Phillips invented an imaging tube called the
Plumbicon that promised true color fidelity. They were
made in Slaterville, Rhode Island, at the Phillips subsidi-
ary, Amperex Electronics. In the early 1960s, a new
broadcast camera featuring the new Plumbicon tube was
being developed by the Phillips Company in Holland. It
was called the Norelco PC 60 and was introduced in U.S.
in late 1964. Following the 1964 introduction of the
Norelco PC 60 came models PC 70, PC 72, PCP 90, and
the LDH series. At the same time, German Bosch Fernseh
marketed a line of high-end broadcast studio cameras
(KCU, KCN, KCP, and KCK) in the U.S., ending with
the tube camera KCK-40 in 1978 (Fig. 10).
FIGURE 6. (Left) Farnsworth and his image dissector camera;
Meanwhile, Japan was now stirring. In May 1946, Sony
(right) Vladimir Zworykin of RCA with some of the early image was founded as a consumer business but, in 1976, formally
sensors he developed. entered the broadcast TV business. In September 1946,
FIGURE 8. (Left) TK-30 image orthicon camera that was to dominate black-and-white TV cameras throughout the late 1940s; (right)
early color TV camera of the mid-1950s.
FIGURE 11. 1970s early portable cameras: (left) RCA in 1978; (center) RCA TKP-46; (right) 1977 EMI portable.
birth of the portable video camera proved far more ar- broadcast studio camera and the camcorder landscape.
duous. One of the earliest attempts was by the redoubt- The 1980s was a crucial decade in accelerating the devel-
able RCA in the mid-1980s and featured a daunting opment of portable camcorders and introducing the inte-
shoulder mount camera that was tethered to the pro- grated camcorder. This decade saw the “format wars”—a
cessing electronics in a backpack on an assistant. It fierce competitive struggle between competing videotape
proved to be one of those unavoidable first baby steps recorder (VTR) recording formats—and SMPTE Work-
from which much would be learned. ing Groups grappling with multiple related standards.
The real breakthrough was in 1976, when RCA Dramatic reductions in size and weight and incorporation
introduced the world’s first fully self-contained portable of a host of operational features saw portable video pro-
camera—the TK-76—based on the new 2/3 in. image duction totally eclipse 16 mm motion picture film cap-
format size pickup tube (Fig. 12). ture for TV news (electronic news gathering) and for
However, the notoriety of the TK-76 was short-lived electronic field production. Separately, as early as 1983,
as now Japan had vigorously thrust into the western Ikegami introduced the world’s first electronic cinema-
world in the form of Ikegami, Hitachi, Panasonic, and tography camera—the EC-35—based on three 2/3 in.
Sony, and they were to soon dominate both the Plumbicons.
FIGURE 12. Evolution in 2/3 in. image format cameras—the pioneering RCA TK-76 on the left, which was soon challenged by the
Ikegami HL-79A on the center—and Ikegami’s later foray into electronic cinematography with their EC-35.
Arrival of the CCD Image Sensor the 1920 (H) 1080 (V) digital sampling format with
At NAB 1984, RCA showed the first broadcast camera standardized frame rates for both the 50 and 60 Hz
based on the new CCD technology they had developed regions—a historic first in the annals of TV.
(Fig. 13). NEC and Sony followed, and by the end of the 1992 saw the world’s first CCD-based HDTV camera
decade, the integrated CCD camcorder had arrived, and which was to propel motion imaging to an entirely new
the broadcast format wars had become a global struggle level (Fig. 15). In 1994, protracted industry collaboration
for dominance in VTR recording formats. produced the BTA S-1005-A standard for the 2/3 in.
HDTV lens-camera interface—entailing optical, mechani-
Arrival of HDTV cal, and electronic interfaces—a first such standard in
This same 1980s decade also saw the arrival of high- video history that holds firm to this day. This was to add
definition TV (HDTV) in the form of highly expensive significant impetus to global developments in HDTV optics
photoconductive cameras and gigantic analog tape record- and cameras and helped rapidly establish the small 2/3 in.
ing systems (Fig. 14). The ensuing technical develop- image format size as central to ensuing developments. The
ments were flanked by an extensive global effort to forge a first integrated HDTV camcorder emerged in 1997.
unified standard for HDTV production and international A pent-up industry discussion on the possibilities of
program exchange. SMPTE was to play a central role 24-frame HDTV encouraged Sony to develop a total
here—forming a Working Group on Electronic Produc- production “24P” system and the SMPTE and ITU to
tion that ultimately produced the standard ST 274M in develop related standards. 1996 saw the establishment of
1996. That effort carried over to the international body, the ATSC 1.0 standard for over-the-air transmission
the International Telecommunications Union (ITU), of digital HDTV—but the broadcast industry held
and ultimately produced a worldwide standard based on back for some years. The new century saw accelerating
developments in HDTV studio and field cameras, and
when ESPN launched their initiative to cover major
FIGURE 17. Indication of the prolific developments underway in large-format cameras from AJA BlackMagic, Canon, JVC, Kinefinity,
Panasonic, RED, and Sony (most offer families of these cameras).
AQ3 = Please check if Figs. 1-18 are cited properly in the text; otherwise, kindly provide the
correction.