Compact High Definition Camcorder
For Studio & ENG Applications
Live Uncompressed 720p & 1080i
GY-HD251
Page 2
Defining the future of
professional video
with 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. The evolution of JVC’s range
of digital cameras and recorders continues with the introduction
of advanced features and varied storage options, including fullsize DV tape and hard disk drives.
Now with the production and delivery of video content starting
to shift to high definition, 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
non-proprietary 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 sought-after 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
solid state recording
media. Designed and
built for professionals,
ProHD is the fulfillment
of the digital promise,
offering true high definition
performance in a compact,
affordable system.
The latest addition to the ProHD
system is the GY-HD251, a compact
studio-capable shoulder camcorder
featuring full-frame 50p recording
for smooth, continuous images.
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ProHD — JVC’s Affordable
HD Solution
1. HDV Full Progressive Scanning (720p)
Leading industry professionals told us that they wanted a fullframe progressive scanning system that would shoot and
record the highest quality continuous moving images. ProHD
uses the 720/50p 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 H-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 via 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 to 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 form of display on the cinema screen, 24 frame
progressive recordings can be transferred easily to 16 mm or
35 mm film.
GY-HD251
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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/50) format for high
quality moving pictures and digital stills
Progressive scanning
JVC’s ProHD products use the same
progressive scanning system used in highend HDTV cameras. Because the
GY-HD251 uses a full-frame (50p)
progressive scanning system, it has the
unique ability to capture and store full
frames of image information. An added
bonus of progressive scanning is that it is
a very simple process to convert a
progressive image to interlaced, but not
vice versa. When progressive recordings
are paused or 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.
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.
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, plasma, DLP, D-ILA). HDV 720p is thus natively
compatible in terms of both resolution and scanning system
with the vast majority of today’s HD displays.
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.
The GY-HD251, fitted with
Mini 35 film adapter from P &
S Technik, 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 battery
systems manufacturers.
3●
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GY-HD251
Compact ProHD camcorder for Studio and ENG applications
Professional ProHD camcorder with super-smooth 720p/50
imaging for ENG plus an optional 26-pin
adapter for studio use.
With 720p/50 capture and recording capabilities,
the GY-HD251 delivers full-resolution HD images,
ensuring the high resolution and smooth motion so
critical to ENG and sports productions.
Equally at home in the studio,
the GY-HD251 is easily converted for
studio use by means of the optional studio
adapter KA-HD250, which incorporates an
industry-standard 26-pin multi-core
connection. Other valuable features of
this versatile camcorder include genlock,
component and HD SDI output, wide
selection of optional HD lenses, enhanced
cinema gamma, external time code synchronisation
and sturdy professional connectors on a rugged die
cast chassis.
From live field recording to high-end studio
production, the GY-HD251 is the cost-effective
answer to today’s demand for high quality imagecreation which is both flexible and affordable.
GY-HD251 fitted to the
optional Studio Adapter KAHD250 and with optional LCD
Studio Viewfinder.
Optimised picture quality from innovative JVC technology within GY-HD200/201/251
A/D
converter
14bit
14-bit A/D converter
To improve both the S/N ratio and the horizontal resolution, a new 14-bit A/D converter was specially developed by JVC to prevent signal
deterioration and to generate a fourfold increase in gradations.
Wideband front end processing
The ProHD camcorder uses a wideband analogue front end to process its CCD sampling via the 14-bit A/D converter. This further
improves the S/N ratio and horizontal resolution by optimising the CCD drive circuitry. The new LVDS (Low Voltage Differential Signal)
interface minimises any other possible signal degradation and so contributes to the improved S/N ratio.
Enhanced linearity
To enable 720p/50 recording, a new super encoder and a new pixel converter were developed, incorporating an adaptive filter which
optimises the scalar performance of cross-converted signals, including 1080i. The resultant effects are increased resolution and reduced
aliasing. Objects thus have much more natural looking edges and images are therefore extremely lifelike in appearance.
Wideband
AFE
64MHz
Linearity
Horizontal resolution and signal-to-noise ratio have
been enhanced, making the already high ProHD
picture quality even better. Together with ProHD’s
superior colour reproduction, these improvements
ensure true professional quality HD imaging.
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GY-HD251
Compact ProHD camcorder for Studio and ENG applications
Professional specifications
HDV and DV compatible
As the HDV format uses the same recording track pitch as Professional
DV, the GY-HD251 can record signals in either standard definition
(576i/50) or high definition (720p/50) according to the user’s needs.
Real 24p camcorder
The GY-HD251 also offers real HD 24p recording capability —
previously available on only the most expensive HD cameras. Ideal for
DVD production, HD progressive 24-frame-per-second recording
makes it possible to shoot images with film-like quality and smooth
motion. Once recorded, those images can easily be transferred without
frame rate conversion to 16 mm or 35 mm film with full HD fidelity.
ProHD’s outstanding image quality is supported by a wide range of
powerful pro-level features including an image inverse function that
cancels image reversal (reversal of top/bottom and left/right) and a
menu selection for the appropriate combination of colour matrix and
film gamma type. Cinema gamma is deployed to make video look like
film, and Film Out gamma is used when the video will ultimately be
transferred to film.
These choices of gamma mean that the cinematographer,
irrespective of whether the final production will be presented as film or
as video, can be sure of always getting the best possible film look.
Cinema Gamma
(for film-like video productions)
Film Out Gamma
(for subsequent transfer to film)
Interchangeable HD lenses
The GY-HD251 features a standard professional 1/3" bayonet lens
mount, providing the opportunity to use a variety of other professional
HD lenses. In addition to the standard Th16x Fujinon lens supplied, a
number of other 1/3” bayonet mount zoom lenses is available. Canon
offers a powerful 20x5mm zoom lens and Fujinon similarly an
18x4.2mm, besides a very wide 13x3.5mm lens and two versions of
17x5mm, one ENG and the other studio type.
Furthermore, lens mount adapters ACM-12 and ACM-17 convert
the mount, respectively, to 1/2” and 2/3” bayonet mount, allowing cost
saving by being able to use existing 1/2” and 2/3” lenses.
Also, to enable the use of film camera lenses, specialist film lens
adapters are available.
3-CCD camera system with 720p HD CCDs
The GY-HD251 uses three 1/3” high definition CCD image sensors.
Each array has a pixel resolution of 1280 x 720 and uses a micro lens
system. Since this native resolution matches that of most HDTV
displays, the need for image scaling is eliminated, further enhancing
the quality of the recorded images. Another advantage of using these
CCDs is their sophisticated circuitry which virtually eliminates both lag
and image burn.
Uncompressed 720p/50 live output via HD SDI and
component
For certain broadcast applications, the GY-HD251 can output a live
uncompressed 720p/50 or 1080i/50 signal in the form of either
OUT (LSB)
IN (%)
STANDARD
CINEMA NORMAL
CINEMA MN
OUT (LSB)
IN (%)
STANDARD
FILM OUT NORMAL
FILM OUT MN
Fujinon HTs18x4.2BRMCanon KT20x5BKRS
5●
Page 7
analogue component or HD SDI, which also carries embedded audio
and is therefore ideal as a feed to a video server, HD switcher or
microwave link.
Uncompressed 1080i/50 live output via HD SDI and
component
One very important reason why JVC developed the progressive form of
HDV was the ease and speed of converting a progressive signal to
other formats, irrespective of whether up- cross- or down-converting.
The conversion is always real time, because the time-consuming
complexity of de-interlacing is not required. The conversion of 720p to
1080i is relatively simple, and therefore fast, hence the live
uncompressed 1080i output via the HD SDI port. Similarly, the
GY-HD251 can be set to output 1080i/50 from recorded 720p/50
footage, whether on MiniDV cassette or on DR-HD100’s hard disk
drive. The HD SDI signal also carries embedded audio.
Professional functions
Compact shoulder mount
JVC’s ProHD camcorders are the first fully professional HD camcorders
to feature a compact design and shoulder mount. Like its
predecessors, the GY-HD251 offers excellent mobility and enhanced
usability, while its flexible range of ergonomic adjustments ensures that
any camera operator, regardless of stature or physique, can support the
camcorder firmly and, above all, comfortably.
Professional functions and switch layout
In addition to the Full Auto Shooting to handle difficult or variable
lighting environments, the GY-HD251 is equipped with an array of
functions that give professionals creative flexibility. These include,
zebra, gain, white balance and full shutter control. Also, the
GY-HD251’s switches have been positioned where professional
camera operators expect them to be. Shooting is intuitive, precise,
easy, and error-free, because there is no learning process to go
through. The GY-HD251 is the ideal camera for any assignment.
Detachable 230,000-pixel LCD colour viewfinder
The viewfinder’s eyepiece can be moved
backwards and forwards and can also be
adjusted laterally for left or right eye shooting,
so the viewfinder can fit any operator
comfortably. JVC’s own developed Focus
Assist control ensures fast and easy
focusing. It has 3 settings, (high, medium &
low) depending on the type of subject in
view. To make focusing even easier, a black
and white mode is available. Stronger
contrast and reduced colour noise make
visualisation and composition easier in this mode and put less strain on
the eyes so you can shoot for longer periods. You can also keep using
the eyepiece viewfinder even when using the LCD display. If not
required, the eyepiece viewfinder may be detached.
3.5" LCD display panel
This 250,000-pixel 3.5" colour TFT LCD monitor provides a highresolution image during shooting and playback. JVC’s own developed
Focus Assist control (see this page) ensures fast and easy focusing. A
push button selects three display modes:
1. Video only
2. Video images with text information overlay including time, status,
mode and other data are shown on the screen.
3. Only information such as time, status, mode, time code, audio levels
and other data is shown on the screen.
Various audio-related functions
When colour bars are output, an audio reference level (test tone) can
also be output if required. This is requested via the menu. The audio
reference level can be set at -12 dB or -20 dB as required. To minimise
extraneous noise picked up by the microphone, a "wind cut" function
is provided.
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GY-HD251
Compact ProHD camcorder for Studio and ENG applications
Various control functions
This camcorder has a genlock input capability for synchronisation and
time code input/output, making multi-camera shooting possible.
Versatility and flexibility
Camera settings recorded on SD
card
Customised settings can be stored on
a standard SD memory card and
loaded into another GY-HD251 or
changed on site, as required.
IEEE 1394 (FireWire) in/out and HD
SDI out
A convenient IEEE 1394 interface allows easy direct connection to NLE
systems or to a PC for capturing, editing and archiving.
An HD SDI connector (BNC) is provided on the rear panel for the
output of uncompressed 720p and cross-converted 1080i. The HD SDI
signal also carries embedded audio.
User-friendly design
Universal ergonomic design
The camcorder adapts to fit any shape of body comfortably because of
the shoulder pad that can be moved back and forth, the left-eye righteye viewfinder with eyepiece that can also adjust back and forth, and
the padded audio monitor that slides up & down.
Patented “FOCUS ASSIST” function
A JVC patented device, Focus Assist, turns focusing into a fast, easy
and accurate process. When Focus Assist is activated, the picture in
the viewfinder becomes monochrome and all objects which are in focus
take on a coloured fringe. In addition to the factory default Middle
position, Low and High positions are available. In the Low position, you
can limit the area in focus for more precise focusing. This is particularly
helpful when using the technique of pulling focus. Focus Assist works
equally in the 0.44" viewfinder and the 3.5” LCD panel. There are two
Focus Assist buttons, one for each of handheld and shoulder operation.
Out-of-focus imageIn-focus image
Connect to optional external HDD
The camcorder has a hard disk drive accessory option, DR-HD100,
which connects via the IEEE 1394 port, allowing footage to be edited
immediately without having to wait for data to be transferred.
Other features
Two XLR audio inputs
Full Auto Shooting
Adjustable colour matrix
LCD mirror mode
The edge of the in-focus subject is
shown in colour, telling the operator that
the subject is in-focus. A major benefit of
this system is that it operates in real time.
Two-mode composite out
Colour bars
Front and rear mounting fixtures for
tripod plate
DR-HD100 Hard Disk Drive incorporating the latest DTE (Direct to EditTM) technology
Connects to GY-HD251 camcorder
The DR-HD100 has been designed specifically to attach to the GYHD251 camcorder. Interlocked to the camcorder’s record trigger, HD
and SD images can be recorded together with audio and time code. It
is powered by either a built-in rechargeable or an external battery. The
DR-HD100 is supplied with its own cradle, from which it is detached
easily. Optional bracketry is available for mounting the HDD recorder at
the rear of the camcorder.
Compatible with popular NLE systems for HDV and DV editing
DTETMtechnology permits the DR-HD100 recording data in HDV and
DV to be set to the NLE’s native file format. This means that no time is
lost to the lengthy processes of file transfer and rendering. Use DRHD100 instantly with the most popular applications from Adobe, Apple,
Avid, Canopus and many more. As new application support is
released, the DR-HD100 can be updated in the field with new system
software, by an easy process using the disk drive itself.
Integrated with camcorder and disk drive operation
Attached with the GY-HD251, the DR-HD100’s record and
BR-HD50 ProHD Recorder/Player
HDV recording
Multi-format output and cross-converter
function
HDV 60Hz and 50Hz compatibility
Standard DV & Mini DV compatible
mechanism
DVCAM playback capability
record/pause functions are controlled from the camcorder. Time code
generated by the camcorder is recorded to files on the DR-HD100 and
DR-HD100 status and other information appears in the viewfinder and
LCD display.
Long record times
This hard disk drive option extends uninterrupted record time by hours.
For example, an 80GB FireWire drive can store 6 hours of DV video
and 7.5 hours of HDV video, and a 40GB drive does half these times.
It is possible also to daisy chain up to four external drives of different
capacities to the DR-HD100, enabling uninterrupted recording of
incredibly long durations.
LCD display and playback modes
The DR-HD100 features a detailed LCD that displays system mode, time
code and disk space remaining. When used with the GY-HD251
camcorder, clips can be reviewed on the viewfinder, LCD panel or
external monitor, by using DR-HD100’s playback mode. Functions include
record, play, pause, stop, forward index, back index and multi speed fast
forward and rewind.
Auto error correction system
Sweeper heads
HDMI OUT
RS-422A interface
IEEE 1394 interface
Versatile analogue connectors
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1243567
GY-HD251 fitted to the optional Studio Adapter KA-HD250 and with
optional LCD Studio Viewfinder.
System configuration
Rear panel connectorsStudio Adapter
1 GENLOCK/AUX IN
2 HD/SD-SDI
3 DC INPUT
4 REMOTE
5 PR/TC OUT
6 PB/TC IN
7 Y
Cannot be used for HTs18x4.2BRM lens.
Use Fujinon ZMM-6: Module unit/CZH-14:
Grip/CFC-12-990: Cable/MCA-7: Mounting clamp
DT-V Monitors — LCD
M-DV63PROHD
ProHD tape — 63 mins
M-DV12CL
ProHD cleaning tape
DR-HD100-40 (40GB - 3-1/2 hrs typical)
DR-HD100-80 (80GB - 7 hrs typical)
DT-V1710CG (17")
DT-V100CG (10")
DT-V24L
DT-V20L
DT-V9L
(24")
(20")
(9")
DIMENSIONS
235
104
200 (X16 LENS)
260 (X13 LENS)
82.3
242.3
224
225
50
82.3
59
4088
VF MOVE
S. PAD
MOVE
297 (for ANTON BATT.)
25
310 (for IDX BATT.)
211
HZ-FM13U* (Fujinon)
HZ-FM15U (Canon)
*The HZ-FM13 cannot be used for S14 and Th16 lenses.
Use Fujinon FMM-8: Module unit/CFH-3: Grip/CFC12-990: Cable
GM-H Monitor — LCD
GM-H40L (40")
Unit: mm
VF MOVE
55
129110
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Typical system configurations
MPEG2 ENCODER
VIDEO SERVER
LIVE SWITCHER
GY-HD251
Studio production
with HD SDI and 26-pin control
By combining the GY-HD251
with the KA-HD250 adapter,
you can create a studio system
with camera control and
tally/intercom bi-directional
communication via 26-pin
multi-core cable. For
video/audio transmission, the
HD/SD SDI signal allows longdistance digital transmission at
1.5 Gbps with minimal
degradation via a separate
coaxial cable.
Live HD recording
with tape and hard disk
With 720/50p acquisition
capability, you can record
smooth, full-frame high-quality
images. Also, with genlock
input and time code
input/output, multi-camera
shooting is possible. When the
GY-HD251 is combined with
the DR-HD100, hybrid (HDD
and tape) high-quality ENG with
extended recording times is
possible.
HD cinematography
with 24 fps and film lenses
In addition to the 24 fps of 720p/24
mode there are two extra gamma
settings to choose from, cinema and
film out, which gives the captured
images a very film-like appearance,
according to whether final distribution
is on video or on film. With the
different film lens mount adapters
available, prime film lens can be
used, so creating an affordable digital
cinematography system. To
accommodate certain film lens
adapters, the menu allows image
inversion.
Control
HD SDI
DT-V1710CG
MONITOR
CALLTALLY
INTERCOM
LEVEL
FULL AUTO F1
SHUTTER
GAIN
F2
F3
MENU/SHUTTER GAIN
PAINT AUTO
BR
W.BAL
AUTO
MANU
WHITE MASTER BLACK
POWER
I
O
IRIS
STEP
SHUTTER
MENU
PUSH-ON
DOWN UP
VARIABLE
PUSH-ON
HIGH
LOW
B
A
PRESET
CLOSE OPEN
MID
DOWN UP
F4
BARS
REMOTE CONTROL UNIT RM-P210
CAMERA CONTROL UNIT
KA-HD250
Studio adapter
GY-HD251
HDV
HDV
720p24
LASER KINESCOPE
BR-HD50
TAPE
BR-HD50
TAPE
NLE
720p24
NLE
GY-HD251
SD*
1080i*
720p
720/50p
720/50p
DR-HD100
*NLE dependant
MATTE
BOX
PRIME
LENS
FILM LENS
MOUNT
ADAPTER
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Specifications
GY-HD251E
[General]
Power requirement: DC 12 V (10.5 — 17 V)
Power consumption: Approx. 20 W (in Record mode)
Dimensions: 242 (W) x 233 (H) x 414 (D) mm
Mass: 3.7 kg (including viewfinder, microphone and tape)
Temperature:
Operating: 0°C to 40°C
Storage: -20°C to 60°C
Humidity:
Operating: 30% to 80% RH
Storage: 85% RH or less
[Camera section]
Image pickup device: 1/3" interline-transfer CCDs
Colour separation optical system: F1.4, 3-colour separation prism
Number of pixels: Total: Approx. 1,110,000 pixels
Colour system: PAL (wide band R-Y, B-Y encoder)
Colour bars: SMPTE HDTV colour bars/EBU colour bars
Sync system: Internal sync (built-in SSG)
External sync:BB, VBS, signal or HD tri-sync signal
Lens mount: 1/3" bayonet system
ND filter: +1/4ND, +1/16ND
Gain: 0, 3, 6, 9, 12, 15, 18 dB, ALC
Electronic shutter:
Video signal recording format: DV format, 8-bit, 25 Mbps
Compression: DV compression, 4:2:0
Audio:
[HDV]
Audio signal recording format: MPEG1 Audio Layer II
[DV]
Audio signal recording format: 16-bit (locked audio), 48 kHz PCM for 2 channels or
12-bit, 32 kHz PCM for 4 channels
Usable tape: Mini DV tape
Tape speed: 18.831 mm/sec.
Record/play time: 63 minutes (with an M-DV63PROHD tape)
[Connectors]
HD/SD SDI output: 0.8 V (p-p), 75 ohms, unbalanced (BNC)
HD SDI: SMPTE292M/299M standard (embedded audio)
SD SDI: SMPTE259M/272M standard (embedded audio)
Analogue composite output: 1.0 V (p-p), 75 ohms, unbalanced (RCA)
Analogue component output:
Y: 1.0 V (p-p), 75 ohms, unbalanced (BNC)
R-Y/B-Y: 0.7 V (p-p), 75 ohms, unbalanced (BNC)
Analogue composite input: 1.0 V (p-p), 75 ohms, unbalanced (BNC: switchable
from Genlock input)
Genlock input: 1.0 V (p-p), 75 ohms, unbalanced (BNC)
Audio inputs:
Mic: -60 dBs, 3 kohms, balanced (XLR), +48 V output for phantom power supply
Line: +4 dBs, 10 kohms, balanced (XLR)
Audio outputs: -8 dBs, low impedance, unbalanced (RCA)
Earphone jack: -18 dBs to -60 dBs, 8-ohm impedance (stereo mini-jack x2)
Time code input: 0±6 dBs, high impedance, unbalanced (BNC: switchable from
component output)
Time code output: 0±6 dBs, low impedance, unbalanced (BNC: switchable from
component output)
IEEE1394 connector: 6-pin
Remote connector: DIN 6-pin
[Accessories provided]
Viewfinder x 1, Lens (Th16x5.5BRM) x 1, Microphone x 1, SD memory card x 1
V-wedge tripod adapter (KA-V100) x 1
RECORDING FORMATS & LIVE SIGNAL OUTPUTS
Recording
(Shooting)
720/60p
720/30p
HD
(HDV)
HDV
HDV
* Recordings in HDV 1080i format cannot be played back by GY-HD251 and BR-HD50.
720/50p
720/25p
720/24p
720/60p
HD
720/50p
DV
DV
DV
576/50i
576/50i (25p)
Playback
720/60p
720/30p
720/50p
720/25p
720/24p
576/50i
576/50i (25p)
Recording
(1394 in)
720/60p
720/30p
720/50p
720/25p
720/24p
576/50i
576/50i (25p)
Rec
on tape
←
←
←
←
←
N/A
N/A
←
←
Rec
on tape
←
←
←
←
←
←
←
1394
out
N/A
N/A
1394
out
←
←
←
←
←
←
←
←
480/60i
←
←
576/50i
←
480/60i
←
←
←
480/60i
576/50i
480/60i
Component/SDI out (EE out)
←
720/60p
←
720/50p
720/60p
1080/60i
1080/50i
←
←
Component/SDI out
1080/60i
←
1080/50i
←
1080/60i
←
←
1080/60i
←
1080/50i
←
1080/60i
←
←
720/60p
720/50p
720/60p
720/60p
720/50p
720/60p
←
←
Component/SDI out
←
←
Composite out
Composite out
←
←
Composite out
←
←
480/60i
480/60i
576/50i
576/50i
480/60i
480/60i
576/50i
←
←
480/60i
←←
576/50i
480/60i
←
←
480/60i
←←
576/50i
480/60i
←
←
* HDVTMand HDVTMlogo are trademarks of Sony Corporation and Victor Company of Japan, Limited (JVC).
* DVCAMTMis a registered trademark of Sony Corporation.
* DTETM(Direct to EditTM) is a registered trademark of Focus Enhancements.
* Product and company names mentioned here are trademarks or registered trademarks of their respective owners.
DISTRIBUTED BY
The values for weight and dimensions are approximate.
Simulated pictures.
E.& O.E. Design and specifications subject to change without notice.
JQA-0288
Hachioji Business Center of Victor Company of Japan, Ltd. has received ISO14001 and
ISO9001 Certifications under the global standard for environmental management.
“JVC” is the trademark or registered trademark of Victor Company of Japan, Limited.
KCS-8390 CEHD251PKN0609
Printed in Japan
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