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BETACAM
After its introduction
in 1981, Sony's Betacam became the standard professional field camera
for location video work. Its adoption on an international scale
was no small accomplishment given the brutal competition that characterized
the "format wars" in television equipment manufacturing--a high-stakes,
capital intensive struggle that produced scores of competing and
incompatible high-end recording formats in less than a decade. The
Panasonic Recam, Bosch QuarterCam, and RCA Hawkeye "alternatives"
all proved costly losers to Sony in the race for the first successful
broadcast quality "camcorder," a single unit containing both camera
and videocassette recorder.
Before Betacam,
electronic news gathering (ENG) utilized the 3/4" U-matic cassette
format introduced in 1973. While 3/4" tape economies made 16mm newsfilm
obsolete in the late 1970s, the video format was actually a step
backwards in terms of portability and ease of use. While 16mm newsfilm
cameras like the CP16R combined a magnetic sound recording head
within the camera head, 3/4" videotape shooting required a separate
video cameraperson, sound recordist and VCR (videocassette recorder)
operator--all tethered together by multi-pin camera/sound cables
in a cumbersome relationship that made moving shots extremely difficult.
The 20-30 lb. weight of each loaded VCR and and camera in the late
1970s tethered sytem made logistics and transportation crucial in
any location news assignment. Add to this the fact that 3/4" videotape
was only marginally "broadcastable," and the system's limitations
are apparent. While Ampex marketed a true broadcast-quality portable
1" system in the early 1980s (the 53 lb. VPR-20) and producers had
used AC-powered 1" type-C VTRs housed in trucks in the field, neither
proved adequate solutions for those who sought to cover fast-breaking,
spontaneous stories without being intrusive. At a mere 17.7l bs.,
and in a configuration that combined both 1/2" VCR and camera in
an integrated unit on the shoulder of a single camera operator,
the BVW-1 Betacam was widely hailed as a revolution.
Betacam's significance
came in three areas: in new technologies that the format introduced;
in broader technical improvements that Betacam simply incorporated;
and in a number of new practices that developed alongside widespread
adoption of the format. First, Betacam's defining edge resulted
from rejecting the dominant system of "composite" recording--where
all electronic information is recorded as part of one fluctuating
signal. Betacam was grounded in "component" recording. By recording
and manipulating luminance (brightness) and chrominance (color)
information separately throughout the production process, component
recording aimed to "solve" one of the built-in flaws of the American
NTSC broadcast standard. Historically, NTSC was standardized for
black-and-white recording and was more than adequate for live transmission.
Color, as approved by the FCC in the late 1940s, was a troubling
afterthought for the NTSC system. Engineers struggled to "fit" color
information onto its existing and very limited black and white composite
signal. The resulting "compromise" meant that interference between
chroma and luminance, and color instability due to multiple generations
or amplifications, became synonymous with the NTSC standard. Component
engineers argued that the production process should not remain hostage
to the limited bandwidth of broadcasters, but could take advantage
of superior--even if incompatible--alternatives, as long as the
endproduct was compressed back to NTSC before broadcasting. Component
recording, then, emerged as a production, rather than transmission,
format. By maintaining the integrity of signal components throughout
production Betacam eliminated the cross-interference that degrades
NTSC composite image quality, even as Sony hyped a "field look"
that rivaled 1" or 2" "studio quality."
Apart from logistical
benefits that came with Betacam's size and portability, and the
enhancements that came with its shift to component processing, the
camcorders that followed the BVW-1 and BVW-3 became, in the next
fifteen years, a veritable index of historical improvements in video
technology. In 1983, for example, NEC first introduced charged coupled
device (CCD) camera sensors. These solid state chips eliminated
the aberrations of traditional camera pickup "tubes": blooming,
burning, image variability, bulkiness, and high-light levels. It
was Sony, however, that quickly exploited the breakthrough. Upgraded
with CCDs, Betacams became even smaller, yet allowed videographers
film-quality contrast at extremely low-light levels. Sony made the
format "dockable" with high-end Ikegami cameras, added metal tape
and the processing designation "SP" (for superior performance),
and increased the camera resolution to 700+ lines. Betacam SP's
visual sophistication made it the dominant rental camera in commercial
production in the 1990s. The format was widely used in the field,
in multi-camera shoots and in microwave uplinks for live news coverage.
Betacam
also led to important changes in video postproduction. First,the
advantages of component recording were only fully realized in editing
systems that were also entirely component. While the shift was expensive,
the 1980s saw widespread changeover to all-component processing
in editing suites across the country. Second, the emergence of Betacam
encouraged the development of "interformat" editing systems as well.
Before Betacam, system source decks and master recorders typically
utilized the same format. After the arrival of Betacam source tapes
that equalled the quality of 1" online systems, however, "bumping"
tapes up to 1" made no sense given the inevitable loss in quality
that resulted from copying. Third party engineers quickly customized
interformat suites that could exploit first generation Betacam quality
for 1" program masters. With an eye on the digitalization of post-production
and to the future of field imaging, Sony aggressively marketed its
next "breakthrough" in 1994: Betacam Digital. Made to compete with
Panasonic's D-3 and D-5 digital tape formats, analysts speculated
that Sony's existing market share and Betacam "branding" would insure
the format's future.
While
Betacam can be seen as a barometer of technical developments, the
unit is also symptomatic of aesthetic changes in the medium. Betacam
emerged along with a number of new genres in the late 1980s. Its
accessible "broadcast quality" gave 1/2 hour "infomercials" the
affordable wall-to-wall quality control that the form needed. Its
extreme low-light capability provided the gritty street-look of
the new "reality shows" that emerged in 1988-1990 (COPS, Rescue
911, America's Most Wanted). Its portability and collapsed crew
size provided ample fragmentary fodder for the new tabloid shows
(Hard Copy, A Current Affair). Even "higher" journalistic
forms that disdained the tabloids--such as the primetime news magazines
that experienced explosive growth in 1993, 1994 (First Person,
20/20, Dateline)--made Betacam a bottom-line workhorse to fill
primetime hours. When several Betacams were stolen from the frenzied
corps that covered the O.J. Simpson trial in 1995, police quickly
theorized that the gear--essentially low-cost studios-in-a-package--was
probably already being used in the pornographic video industry that
flourished in the San Fernando Valley area near Los Angeles. Technologies
do not "cause" changes in narrative or genre, but Betacam's proliferation
in the 1980s and 1990s--alongside economic and institutional shifts--suggests
that the system helped comprise the technical preconditions for
one of television's most volatile stylistic periods.
The
fate of Betacam is directly tied to the future of three alternative
imaging systems: film, digital video, and HDTV (High Definition
Television). Low budget feature films have been shot on Betacam,
printed on film, and distributed theatrically. Yet even the best
Betacam Digital system cannot replicate the tonality of film negative--at
least acccording to the Eastman Kodak Company. HDTV has been touted
as a step closer to true film quality, a next generation camera
system, but the best HDTV cameras are cumbersome compared to Betacam.
Finally, the future of Betacam may have as much to do with the survival
of videotape as with anything else. When Avid and Hitachi announced
the joint development of a RAM (random access memory) disk-based
portable camera system at the convention of the National Association
of Broadcasters (NAB) in 1995 the implications were far from subtle:
digital computer storage may revolutionize and render obsolete tape-linked
camera technologies to the same extent that nonlinear editors and
video servers have altered the practice of video post-production.
-John
Thornton Caldwell
FURTHER
READING
Denison,
D.C., As Seen on TV: An Inside Look at the Television Industry,
New York: Simon and Schuster, 1992.
Gross,
Lynne, and Ward, Larry, Electronic Moviemaking, (Belmont,
CA: Wadsworth, 1994).
Matthias,
Harry, and Patterson, Richard, Electronic Cinematography,
(Belmont,CA: Wadsworth, 1985.
Patterson,
Richard, and White, Dana, eds., Electronic Production Techniques,(Los
Angeles: American Society of Cinematographers, n.d.).
Ward,
Peter, Basic Betacam Camerawork, (London: Focal Press, 1994).
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