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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