The Professional Choice
Defining the future of professional video — Introducing JVC ProHD
With the introduction of JVC’s ProHD, the promise of digital technology has finally been fulfilled. Surprisingly affordable, impressively professional, and remarkably compact, ProHD embraces the HDV format to deliver a complete high-definition solution that has been designed to meet the needs of today’s most demanding professionals, while retaining the ability to adapt to future requirements.
Since the launch of D9 in 1996 and Professional DV in 1999, JVC has continued to develop and diversify its digital video offerings in response to the rapidly changing environment of visual communications and production. JVC continues to evolve its digital cameras and recorders with advanced features and varied storage options, including full-size DV tape and Hard Disk Drives.
Now with the production and delivery of video content starting to shift to HD, JVC has combined its expertise in camera, encoding and storage technologies to create an affordable HD solution. JVC’s ProHD system, adopting the HDV format, utilises widely available nonproprietary technologies such as
MPEG-2 compression, DV recording media and conventional hard disk drives. Based on input from leading end users, JVC has developed a system with the most soughtafter professional features and performance. Noteworthy ProHD features include full HD progressive scanning,
real 24p, and a dual recording system using tape & HDD. As ProHD evolves, it will include optical and solid state recording media.
Designed and built for professionals, ProHD is the true fulfillment of the digital promise, offering true high definition performance in a compact, affordable system.
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ProHD —
Concept of
JVC’s Affordable HD
Solution
1. HDV Full Progressive Scanning (720p)
Industry leading professionals told us that they wanted a progressive scanning system that would shoot and record the highest quality continuous moving images. ProHD uses the 720 progressive HDV format and produces crisp, native HD images which perfectly match today’s digital displays and which can be converted easily, without degradation, to interlaced scanning pictures.
2. Time Code
As a professional system, ProHD products include the facility to record and display timecode. Convenient menu operation makes it easy to preset time code at the beginning of a tape. Simply select REC RUN or re-generation mode. User bits are also available.
3. Highly efficient video compression
To provide the highest quality HD recording, JVC uses the broadcast industry standard MPEG-2 Main Profile at HL-14. Offering far greater efficiency than frame-bound systems, ProHD records at data rates at or above commercial broadcast rates. Recent advancements in non-linear editing have made it possible to edit ProHD on virtually all popular Non-Linear systems. Direct digital transfers through IEEE 1394 ensure the quality is maintained throughout the transfer process.
4. Dual recording system
Designed to utilise both DV tape and hard disk drives, ProHD offers the ultimate in media versatility, maximising productivity with efficient, economical editing and low-cost archiving. Now you can safely archive the original tape cassette and then plug the hard disk straight into your NLE. Editing can start right away
— no need to make dubs or transfer data.
5. Real 24p
With ProHD, the dream of creating HD video with the essence of film has at last been realised. By capturing and recording at the film frame rate of 24fps, and offering extensive user configurable settings such as exposure, gamma and detail, ProHD becomes an important tool for creative expression. For the ultimate expression on the big screen, 24 frame progressive recordings can be transferred easily to 16 mm or 35 mm film.
BR-HD50
GY-HD110/GY-HD111
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Advantages of ProHD
1.HDV format
HDV is a video format designed to enable the recording of high definition MPEG-2 video on standard
DV media (DV or MiniDV cassette tape). The HDV format was defined by four companies: Canon Inc., Sharp
Corporation, Sony Corporation, and Victor Company of Japan, Limited (JVC). The specification of
the HDV format incorporates two versions, one progressive (720p) and the other interlaced
(1080i). HDV uses the same track pitch and tape speed as the DV format, and therefore the recording times are the same length as the DV format.
2.HD Progressive (720p) format for high quality moving
pictures and digital stills
Progressive scanning
The new ProHD products use the scanning system as used in all Progressive scanning systems capture and store full frames of
convert
played in slow motion, each individual frame contains the full detail of the original image — excellent for viewing and analysing motion. Stills and prints captured from HD progressive video look far better than from interlaced video. In any case, today’s flat panel television displays and fixed matrix projectors, such as D-ILA, DLP and LCD, are all native progressive scanning systems. This means that JVC’s progressive HDV recordings can be displayed without imperfection, because they do not need to pass through the degenerative process of de-interlacing, prior to being displayed.
-format output (BR-HD50)
scanned pictures are converted easily to the format by extracting the odd lines from progressive and the even lines from progressive frame 2 to create
fields required for each interlaced frame. Not only BR-HD50 output its native 720p, but also its built-in
converter can generate 1080i and standard definition Converting the other way, to progressive from interlaced,
a much greater technical challenge, requiring both and motion analysis software to achieve
satisfactory results.
Blu-ray and HD-DVD compatible
The IEEE 1394 connector provides a digital output for editing & recording and for direct transfer to the new generation DVD formats (Blu-ray and HD-DVD). ProHD camcorders and recorders, with their native MPEG-2 TS (Transport Stream), provide a recording signal which is easily transferred to these new DVD formats. This ensures no loss of picture quality.
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HDV and DV compatibility
The HDV format uses the same recording track pitch (10 µm) as Professional DV, meaning that ProHD also offers track pitch compatibility with the DV format and the same recording time. This remarkable HD recording capability was achieved by developing a new high-power MPEG codec system capable of maintaining high-definition picture quality, whilst compressing the data to 19.7 Mbps bit rate. With its superior resolution and advanced processing, ProHD delivers top performance in both its native 16:9 HD mode and in the SD mode. The facility to make recordings in either HD or SD makes ProHD the ideal choice for professionals not quite ready to make the full transition to HD.
Progressive HDV-compatible support
To maximise picture quality and performance from input to output, JVC employs the HDV 720 progressive system. Progressive HDV’s resolution of 1280 x 720 is the same as the native resolution of most HD display devices in use today (LCD,
720p is terms of scanning majority
The GY-HD110, fitted with Mini 35 film adapter from P & S Technik, becomes a digital film camera.
3.Real 24p
24p Progressive Full HD images are ideal for cinematographic applications. From shooting to editing and distribution, an HD system can be established for film-like productions. Unlike 24p images in standard definition, when real 24p HD video is down-converted to SD, the result is truly film-like DVDs. The camcorder itself, with its video lens removed and replaced by a film lens converter system, such as the Mini 35 from P & S Technik, effectively becomes a digital film camera.
4.JVC’s dual recording system
The optional JVC Hard Disk Recorder DR-HD100 creates a dual recording system of tape and hard disk. This system is already utilised by Professional DV users the world over. The many advantages inherent in JVC’s dual recording system of tape & hard disk drive are well appreciated. It was only natural
that JVC’s range of ProHD models would include a Hard Disk Drive recorder and one that can operate
equally in DV and HDV modes. The dual recording system provides fast and efficient HDD-based
editing and cost-effective archiving, using low-cost tapes. Thanks to the newly developed MPEG-2 encoding IC, high-quality pictures can be recorded on readily available compact DV cassettes, so running costs are minimal. As no
special equipment or exclusive media are required, the operating costs of the total system
can be kept low. The DR-HD100 is mounted at the rear of the camcorder, utilising an
optional bracket which is provided by the leading systems manufacturers.
What’s new on GY-HD110 and GY-HD111 (compared with GY-HD100)
Black & white viewfinder display mode
Simultaneous use of both eyepiece viewfinder and tri-mode LCD display when powered by Anton Bauer, IDX or PAG battery system
Selectable mirror mode on vertically flipped LCD display
Adjustable setting of FOCUS ASSIST function
Choice of 3 image formats on composite out (letterbox, squeeze, side cut)
User-adjustable DNR level menu setting
13 segments audio level indicator
Manual audio control within FAS (Full auto shooting)
Audio limiter available in manual mode
Parallel off power management of DR-HD100 recorder
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GY-HD110 Outputs and Applications
Signal: 576i digital component throughout.
Application: Integration with existing
SD editing equipment plus additional facility for true native 16:9 origination.
The compact size and wealth of professional features of the GY-HD110 apply just as much to the SD user as to those working in High Definition. Existing DV equipment and accessories can continue to be used with the GY-HD110. However its three CCDs with 1280 x 720 pixel resolution ensure high quality images with superb colourimetry in
both widescreen 16:9 modes and also in a standard 4:3 aspect ratio.
For those upgrading in the future to High Definition, the GY-HD110 will provide a seamless link from the
Standard Definition Production
GY-HD110 |
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DR-HD100 |
NLE |
IEEE 1394 |
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576i |
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Standard Definition formats |
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currently in use to those |
BR-HD50 |
in demand for the coming |
BR-DV3000 |
HD standards. |
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DV |
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576i |
Signal: 720p 24.
Application: Acquisition for cinematography, transfer to film & video assist.
From the native uncompressed 720p signal, the GY-HD110 camcorder can be set to generate the HDVô compliant 720p 24 recording signal which can record to cassette or to hard disk recorder. The recordings can then be fed in and out of an appropriate NLE and so to a film laser printer, without any requirement for cross-conversion, either from 25p by way of 4% speed change or from 30p by process of 3:2 pull-down.
A further advantage of the GY-HD110 for film schools is that accessories allow the camcorder to be transformed into a digital film camera. The PL-mount adaptor allows prime film lenses to be deployed and also a matte box. Since the optional add-on DR-HD100 hard disk recorder will also record the HDVô for mat of 720p 24, many hours at a time can be put ìin the canî.
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Film School |
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GY-HD110 |
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MATTE |
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LASER PRINTER |
BOX |
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PRIME |
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LENSES |
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1/3" TO 'PL' |
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MOUNT |
HDVô |
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ADAPTOR |
720p24 |
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For the film shooting |
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application of ìvideo assistî, |
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720p24 |
even standard definition |
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recording can be set to 24p |
TAPE |
BR-HD50 |
progressive to capture perfectly |
NLE |
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the film effect. |
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Signal: 720p 60/50, 720p 30/25, 1080i 60/50,
and 576i 50.
Multi Standard Flexibility
Application: Various, where material is to be matched with existing footage or images captured on another format.
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720p 60/50 |
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GY-HD110 |
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720p 30/25 |
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1080i 60/50 |
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The diagram shows the video |
This flexibility comes in part as |
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signals that are commonly found |
a result of the original material |
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576i 50 |
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in HD and SD production in |
being recorded in a progressive |
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Europe. Specifically this diagram |
format, which allows for easier |
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illustrates how these signals are |
and more effective conversion |
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720p 30/25 |
directly available from either the |
to other formats than if the |
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1080i 60/50 |
GY-HD110 or the BR-HD50 via |
original had been recorded as |
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BR-HD50E |
576i 50 |
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a tape recorded in the native |
an interlaced signal. |
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REC 720p 30/25 |
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720p 30/25 format on either of |
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BR-HD50 |
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these devices.
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