seconds; in the 50Hz modes, the cache is 3.0 seconds. When Pre
Rec is activated, a "P" will be displayed in the viewfinder and on
the LCD monitor.
Continuous Clip Mode
In this mode, the GY-HM700 creates a single clip file from
multiple trigger presses. This is ideal when "in camera editing"
is preferred. The complete shot sequence is instantly available as
a single clip. When recording in the Continuous Clip Mode, time
code can be either free run or in the REC mode.
JVC Original 35Mbps MPEG2 Encoder
Drawing from its experience in developing rack mount encoders
used by major television stations, JVC developed a proprietary
codec capable of providing highly efficient compression up to 35
megabits per second, a bitrate that can support full 1920 x 1080
sampling. This results in recorded images of
exceptional quality. MPEG2 long GOP is the
most widely accepted broadcast standard
compression supported by all popular editing
systems and broadcast servers. In the HQ
mode, the encoder operates with a variable bit
rate average of 35Mbps. The SP mode records
at a constant bit rate of either 19.7Mbps or
25Mbps to ensure compatibility with a wide range of equipment.
The GY-HM700 supports all major HD signal formats including
1920 x 1080, 1440 x 1080 and 1280 x 720.
continuous HD recording. The camera automatically begins record-
ing on the second card when the first card fills up. When the second
card fills up, the camera will revert to recording to the first card
slot, allowing for virtually unlimited recording lengths. Being able
to quickly switch cards with dual slots is invaluable in a breaking
news situation where a producer may wish to begin editing while
the shooter is still capturing footage.
*When recording in 19Mbps mode
Separate flip open covers protect card slots from dust, moisture
and open separately for each card. If a cover is opened while the
card is being recorded on, a warning message is displayed on the
VF/LCD.
SDHC cards are economical, highly reliable, and make possible a
recording system that consumes up to 20% less power than tape
or HDD based systems. The per-minute cost of SDHC memory is
comparable to professional video tape. Moreover, SDHC media is
the first practical solid state solution to physical archive.
Native File Recording
The GY-HM700 incorporates JVC's Native File Recording tech-
nology that stores video in the ready-to-edit file format used by
Apple's Final Cut Pro™ non-linear editing system. The ".mov" files
created in the camera can be easily dragged onto the NLE timeline
without conversion or rewrapping, saving time while keeping the
recorded material first generation. There is no need to use an inter-
mediate codec.
Optional SxS Media Recorder
By attaching the optional SxS media recorder, the GY-HM700
will record in the .MP4 format used by Sony's XDCAM EX™ onto
high speed SxS memory cards. This compact
recorder attaches directly to the GY-HM700
without an adapter, essentially becoming part of
the camera. Simultaneous recording to SDHC and
SxS memory is also possible, providing instant
backup or archival recordings. The compact
media recorder provides status information on its
built-in LCD screen as well as on the camera's
viewfinder. Recorded video on the SxS cards can
be played back on the camera's LCD monitor or
viewfinder.
Pre Rec (Retro Cache) Start Mode—
No more missed shots!
In this mode, the GY-HM700 continually records a few seconds
in cache memory. When the trigger is pressed, the live signal is
appended to the cache recording, giving the shooter a "head start"
in getting the shot. This feature is invaluable in capturing breaking
events when the shot would be lost before a traditional camera
could begin recording. In the 60Hz modes, the cache time is 2.9
35
Mbps
Variable Frame Rate Recording
(Over crank, Under crank)
When recording in the 720p 35Mbps mode, the camera can be
set to record at a frame rate different that the playback rate. This
capability makes it possible to record slow or fast motion when the
recording is played back at 24p or 30p.
Compact Shoulder Form Factor
Weighing only 8 lbs including lens, viewfinder, microphone and
battery, the GY-HM700 rests comfortably on the right shoulder
providing stable, steady shots. Unlike some oversized hand held
models, the GY-HM700 becomes
part of the shooter similar to
larger cameras but without
the fatigue associated
with them. The handle
has been redesigned for
better carrying balance,
and to accom-
modate wear-
ing gloves in
cold weather.
Performance
Operability
New high resolution LCOS viewfinder
The GY-HM700 is equipped with a new, rugged high resolution
viewfinder based on a new .45-inch 1.22 million pixel Liquid
Crystal on Silicon (LCOS) panel (852 x 480 x 3). This new all-
digital viewfinder displays images with more than 5 times the
resolution of typical color viewfinders. Its sturdy reinforced die-
cast aluminum chassis and LED light source ensure years of
trouble-free operation. A serial digital interface means there's
no quality loss, even with razor sharp graphic overlays. The
viewfinder's native aspect ratio is 16:9. Safe area indications are
available for popular aspect ratios including 2.35:1. In the record
mode, audio level indications, battery remaining "fuel gauge"
(when using digital batteries) and estimated time remaining for
each memory card are displayed in the viewfinder. The Zebra func-
tion now offers 2 patterns (selectable.)
Jumbo size 4.3-inch flip-out LCD panel
Complementing the new high resolution viewfinder is a large
LCD flip out monitor that can be used in recording, playback, clip
management, and menu operation. Cross-key control makes menu
navigation a breeze. The interface is very intuitive, with up
down/left-right buttons on the same control disk. Selections are
made by pressing the center of the disk. When in the camera mode,
a blue LED lamp outlines the disk. When in the media
playback/management mode, the color changes to green. A Red
display indicates that the camera is in the USB or IEEE-1394 (slave)
mode. (The LED can be turned off with a menu choice.)
Extensive image customization is available. Thanks to the over-
size monitor screen, the user see changes to the image as the set-
ting is being made, eliminating guesswork. Individual user settings
are stored on an SDHC card and may be restored to any GY-HM700
camera. It is also possible to add frequently used controls to a
"favorites" menu (which can be invoked by a user button).
Built-in Clip View
&
Management Functions
When the camera is switched to the playback mode, a clip view-
er appears on the large LCD monitor and in the VF. (This signal may
also be output through the HD/SD SDI connector.) Clips are identi-
fied by time code and with a user defined filename with numeric
increments.
Detailed information is displayed about each clip including
recording format, resolution, and time code start/stop, user bits,
and creation date/time. Clips can be protected from accidental
deletion or deleted if no longer needed. Damaged clips (due to
improper eject, etc.) may be repaired with the "restore file" func-
tion. Though no special formatting is required, memory cards can
be re-initialized in the GY-HM700 to an empty state even while the
other card is recording.
The Quick Review function is available in the record-pause
mode and allows the videographer to play back the first 5 seconds
or the last 5 seconds of each clip, or the entire clip. After playback,
the last image is retained (freeze) until the menu is reactivated. If
during Quick Review, the record trigger is pressed, playback stops
and recording begins immediately.
Spot Exposure Meter
When shooting very high contrast scenes, the Spot Meter can be
a very useful tool, letting the videographer monitor the dynamic
range of an image on the LCD/VF and adjust the exposure of an
object in the frame. There are 4 modes of spot metering: Max/Min,
Max, Min, and Manual. In the Max/Min mode, the highest and low-
est levels of the image are identified with color markers, red (H)
and white (L), along with the video level (before knee and gamma).
The same values can be obtained individually with the Max and
Min settings. Manual lets the videographer set the portion of the
image to monitor. For example, in a scene with varied illumination,
the videographer may wish to meter an individual's face, and set
the exposure accordingly. As the scene changes, the exposure can
be corrected precisely to the desired subject.
Patented "FOCUS ASSIST" function
Achieving exact focus with HD signals is critical. JVC's 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 colored
edge. Focus Assist works equally in the viewfinder as well as on the
LCD panel. The Focus Assist function can be invoked by pressing the
dedicated button on the control panel, or assigned to the RETURN
button on the lens.
High Resolution with three 1/3-inch
Progressive CCDs
The GY-HM700 utilizes three precisely aligned 1/3-inch
progressive scan full HD CCDs—one each for red, green and blue
primary color. JVC engineers have developed a unique 1/3-inch
optical block with Diagonal Offset and a patented exclusive
Adaptive Pixel Correlation Technique that produces resolution
comparable to cameras with larger image sensors.
New high performance Canon HD lens
The GY-HM700U includes a detachable 14x Canon KT14x4.4KRSJ
HD lens based on the superb optics found in more expensive HD
lenses. Its supe-
rior MTF pro-
vides higher
resolution than
typical "stock"
lenses. The lens
has improved
lateral and longi-
tudinal chromatic
aberration characteristics and is ideal for full 1920 x 1080 imag-
ing. Canon's internal focusing system minimizes "breathing" com-
pared with typical focusing systems. Internal focus also makes pos-
sible a more efficient light blocking lens hood. ENG shooters
will be pleased with its wider angle (20% wider than the current
16x 'stock' lens) and consistent brightness from 4.4mm (wide) to
62mm (telephoto) with no F-drop. Operation is the same as with all
professional lenses, with mechanical control of focus, and servo or
manual control of zoom and aperture.
In addition to the GY-HM700's standard detachable 14x Canon
lens, numerous lens options are available from JVC including a 13x
(3.5 mm) wide Fujinon zoom lens, 17x Fujinon zoom lens, 18x
Fujinon zoom lens, 20x Canon zoom lens, and adapters that allow
1/3”-in and 2/3" bayonet mount lenses to be used. Add the HZ-
CA13U film lens mount adapter to the 1/3" bayonet mount, to
enable mounting of 16mm film camera lenses to the GY-HM700,
greatly expanding production lens options. The camera features an
"image flip" function that corrects for the inverted image produced
by prime lenses.
Secure Digital High
Capacity (SDHC)
memory card recording
The GY-HM700 records on widely
available SDHC Class 6 memory cards,
presently available in capacities up to
32GB. The camera provides 2 memory card
slots, for a total of up to 64GB of on board
storage—enough for more than 6 hours* of
35Mbps
25Mbps
19Mbps
1920 x 1080/60i
1440 x 1080/60i
1280 x 720/60p
1920 x 1080/50i
1440 x 1080/50i
1280 x 720/50p
1920 x 1080/30p
1280 x 720/30p
1920 x 1080/25p
1280 x 720/25p
1920 x 1080/24p
1280 x 720/24p
1440 x 1080/60i*
1440 x 1080/50i*
1280 x 720/60p
1280 x 720/50p
1280 x 720/30p
1280 x 720/25p
1280 x 720/24p
www.jvc.com/pro
*(.mov only)
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