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Anleitung Panasonic, modell AJHDC27HP

Hersteller: Panasonic
Dateigröße: 2.86 mb
Dateiname: AJHDC27HP.PDF
Unterrichtssprache:ensl
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Anleitung Zusammenfassung


Integrated in this single unit are an HD color video camera featuring a 1-million pixel IT-CCD unit with on- chip lens as the pickup device, and a DVCPRO HD format VTR incorporating the latest compression technology. The camera unit supports a variable frame function and film tone gamma function, and it also supports the Ultra Prime lenses for 35 mm film cameras as a standard feature. Featuring a 100 Mbps recording rate for the VTR as well, this unit is capable of recording images with an extremely high picture quality to achieve the highest performance and most sophisticated functions as an integrated camera-recorder for electronic field production (EFP) applications. Features Furthermore, it is compact and lightweight, has low power consumption, and excels in achieving a high level of picture quality, sensitivity, and mobility, and is extremely dust-proof and moisture-proof. These are all attributes which enable the unit to be used for electronic news gathering (ENG) applications as well. Since digital signal processing is provided in both the camera unit and VTR unit, the picture quality is further improved while the unit’s stability is also enhanced. SD memory cards meeting global standards can be used for the camera and VTR setting data as part of a system which can accomplish data management. Features of the camera unit The camera unit of the AJ-HDC27H has the following features. OHigh sensitivity: 2000 lx, F11, 24P mode, shutter speed set to 50% of frame rate OFrame rate: 4 fps (frame/sec.) to 60 fps OHigh signal-to-noise ratio: 54 dB (standard) OLow smear OLow flare OScan reverse OSwitchable frame frequency: 59.94 Hz or 60.00 Hz O12-bit analog-to-digital converter incorporated OTwo HD SDI output lines Variable frame rate Frame-drop (under-cranking) shooting and high-speed (over-cranking) shooting, which are special film shooting techniques, have been achieved for the first time in a video camera. The variable frame rate function can be set as desired from 4 fps (frame/sec.) to 60 fps. The shutter speed can also be set from 0.8% of the frame rate (aperture angle: 3 degrees) to 97.2% (aperture angle: 350 degrees), enabling full use to be made of many different presentation techniques. Along with continually recording at 60 fps, the VTR unit enables specific effective frames alone to be marked with time codes so that off-line editing using a conventional DVCPRO HD VTR is possible. This makes it possible to construct a 24 fps production system with minimal equipment investment. Film tone gamma function In the beginning, the first and foremost aspect defining the manifold powers of expression that only the medium of film could achieve was the extent of a film’s latitude (reproduction range). What Panasonic did was to use its resources to develop an exclusive gamma curve for reproducing film tones by means of the CCDs, and this led to the capability of expressing natural gradations and reproducing a rich variety of colors—something that was beyond the means of conventional video cameras. The AJ-HDC27H incorporates a total of three gamma curves—two cine curves (for films/for videos) and the conventional video gamma curve—and it enables the curve that best suits the application at hand to be selected. The powers of expression achieved as a result are comparable to those provided by film. The high sensitivity that is simply superior to film cameras delivers an excellent balance between brightness and high picture quality: indeed, the kind of sensitivity that corresponds to ISO640 enables shooting with the same kind of feel as ultra-fine-grain films. When the conventional video gamma curve is to be used, set the unit to the video mode using the CAM MENU SEL item on the OPTION screen of FILM (CAM) MAIN MENU 4. When one of the cine curves is to be used, set the unit to the film mode using the CAM MENU SEL item on the OPTION screen of FILM (CAM) MAIN MENU 4, and then select the desired curve by setting the CINE GAMMA SEL item on the GAMMA screen of FILM MAIN MENU 1. Features (continued) Features of the camera unit Prime lens mode Not only the lens that does justice to the sensitivity equivalent to a film but also the various devices and equipment that are peripheral to the camera combine to play roles which are so critical that they cannot be divorced from the technical skills of the person operating the camera. Using an HD lens adapter made by Angenieux, this unit supports the ultra-prime lenses used for film cameras as a standard feature. What’s more, Panasonic has achieved an industry first by incorporating as a standard feature, a scan reverse function, which cancels out image reversal occurring when the adapter is used, and switching can be easily accomplished by a menu setting. The unit also supports slide bases, matte boxes and other film camera equipment which users may have been using for years. A full range of long viewfinders, small LCD monitors and other options available from related manufacturers i...


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