Page 1
4K Memory Card Camera Recorder
GY-HM250
Compact 4K Camcorder
offering Great Mobility,
High Functionality
and Live Streaming with
Overlay Info
Shown with optional microphone
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4K Ultra HD Camcorder Delivers the Moment
4K Ultra HD Camcorder Delivers the Moment
Meet GY-HM250, the full-featured 4K Ultra HD camcorder that’s small and light
enough to take everywhere and capable of providing the quality you need.
With two SDHC/SDXC slots, you can record hours of 4K/UHD (3840x2160) 4:2:2
material or 4:2:2 HD signals at up to 50Mbps. If you need to “go live” right
now, you can have the GY-HM250 stream live HD footage over the Internet.
Whether you want to fully customize your settings, or leave it to Full Auto and
simply concentrate on the subject, count on the compact camcorder that puts
professional quality in the palm of your hand.
Shown with optional microphone
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IP Network & Live Streaming (HD/SD Mode)
Shown with optional 4G/ LTE adapter
Advanced IP Network Communication and HD Streaming
The GY-HM250 features JVC's latest IP communications engine,
giving you remote control and monitoring of vital camera and
lens functions from a tablet, smartphone, or computer anywhere
in the world. Live streaming is possible in HD or SD resolutions,
depending on available bandwidth. Connect your
4G/LTE Modem
HD-SDI
Output
Rec to SDHC/SDXC Card
HDMI
Output
Wi-Fi Adapter
Real-Time Broadcast Info Overlay
Watermark
(Imported and
movable)
Programme
Name, etc.
News Title, Reporter Name, etc. Time Temperature
(If needed)
Designed for enhanced single-camera production, the GY-HM250
produces a real-time broadcast information overlays for recorded
video or streamed video without an external CG or production
switcher. Lower-third graphic overlays are generated and controlled
using a browser-equipped device, such as a tablet or smartphone.
Note: This fe ature is not available in 4 K mode.
“LIVE” mark
(Pre-installed or
imported mark)
Logo
(Imported mark)
Full-Screen Graphics Overlay and Slide Show
LTE
Wi-Fi Router
*
GY-HM250 to an optional Wi-Fi or 4G/LTE modem and share your
program with an audience anywhere in the world via content
delivery networks such as YouTube, Facebook Live, and other
cloud service.
*Requires appropriate network connection and optional adapter
YouTube Facebook Live
Decoder
SDI/HDMI
PC
Smartphone /Tablet
FTP Uploading for Footage Transfer
Video clips recorded on an SDHC/SDXC card can be transferred
from the GY-HM250 via FTP server. Clips can be trimmed right
in the camera, which is useful for selecting only vital scenes
before uploading to an FTP server. What’s more, if an upload is
interrupted by a weak connection, the FTP Resume function is
smart enough to restart from where it left off. This will help to
save time for uploading.
Advanced Streaming with Zixi
For advanced live streaming solutions, JVC has teamed with Zixi.
The GY-HM250 features the Zixi engine, installed directly into the
camera, to provide high-quality delivery over 4G/LTE or standard
Internet connection. The powerful Zixi engine applies forward
error correction (FEC) and adaptive bit rate control with the “high
reliable mode” to correct packet loss by over 40%*, delivering a
robust, reliable HD stream.
*Requires Z ixi licensed deco der or ser ver. Qualit y of live streaming de pends on network
conditions including packet loss.
Stores up to 50 full-screen custom graphics (PNG or JPG) in
the camera to overlay on live streaming and HD recording.
Graphics can be advanced manually or presented as a looping
slide show with timing of 1 – 99 seconds* per slide.
Note: This fe ature is not available in 4 K mode.
*Time is approximate. I t does not n ecess arily guarantee that s witching the slide p recisely
at set seconds.
Zero Config Capability
Provides automatic JVC camcorders detection within the same
LAN group, and simple setting up connection with the Streamstar
switcher system.
IP Remote Control and Viewing
When the camera is IP connected,
vital camera operations can be remotely
controlled via wireless or wired LAN from smart
devices, computers, or optional RM-LP100.
Remote control functions include lens
and camera settings as well as registering zoom
presets and IP connection settings.
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The Quality Tells the Story
1/2.3-inch 12.4M CMOS Sensor
The GY-HM250 was built to deliver stunning, life-like 4K Ultra
HD (3840x2160) video. JVC’s 4K CMOS sensor with 12.4M pixels
delivers high sensitivity and excellent performance over
12x Optical Zoom and Seamless 24x Dynamic Zoom
The ultra high quality imagery begins with a precision 12x F1.2–3.5
optical zoom lens (35mm equivalent: 29.6–355mm). When
shooting in the HD mode, Dynamic Zoom combines optical zoom
Original Image No Zoom 12x Optical Zoom
a wide range of lighting conditions. Details are crisp and accurate
throughout the entire image plane.
and pixel mapping from a 4K image sensor to create seamless
and lossless 24x zoom. This allows the camera to have a long
zoom range while retaining its compact form factor.
Dynamic Zoom combines Optical
Zoom plus Pixel Mapping—
focusing on a smaller image area
for lossless 24x Zoom
24x Dynamic Zoom in HD Zoom
4K/Ultra HD (UHD) 4:2:2 Recording at 150Mbps and Live Output
Working with 4K has never been easier. Insert an SDHC or SDXC
(UHS-I Speed class 3) memory card and record hours of 4K/UHD
(3840x2160) 4:2:2 material. Recordings are made using the
Quicktime (.MOV) file format and are compatible with many
popular editing systems. Connect a 4K /UHD monitor with a single
HDMI cable, and view the camera's live 4K signal. You can also
play back recorded files directly from the camera. The GY-HM250
also downconverts UHD signals to standard HD for output through
the built-in SDI or HDMI connectors.
More Manageable 70Mbps 4K Recording Mode
4K 70Mbps recording mode is also available to record 4K footage
on economical Class 10 SDHC/SDXC memory cards. The lower bit
rate creates smaller, more manageable files.
Full HD 4:2:2 Recording at 50Mbps
The ability to record H.264 4:2:2 24-60p at 50Mbps makes the
GY-HM250 an ideal camera for broadcasting and production
houses alike. The color accuracy of 4:2:2 enables the GY-HM250
to deliver exceptional color resolution even when images are in
sharp contrast to the background. This is particularly useful when
strong colors are in contrast to bright backgrounds, or in green
screen usage.
120fps (59.94Hz)/100fps (50Hz) High-Speed Recording
for Slow Motion Playback
High-Speed 120fps HD Recording for Slow Motion Playback
Also available is high-speed
recording* at up to 120fps
(59.94Hz)/100fps (50Hz) for
smooth slow motion playback
(up to 1/5 slow at 24p mode).
It helps create artistic effects
and lets you watch replays to
examine sporting skills.
*Available in 1920x1080 resolution only
Built-in ND Filter
To address extremely bright conditions, ND filters have been
provided internally. None, 1/4, and 1/16 are selectable for instant
adjustment of light intake.
More Features for Reliable Shooting
• Histogram Display • Spot Meter Display • Focus Assist
• Built-in Stereo Microphone • 3.5-inch Color LCD Display (920K
pixel) • 0.24-inch Color Viewfinder • Wired Remote Control
supported
Shown with optional 4G/ LTE adapter
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The Versatility to Keep On Going
307 (12-1/8)
207 (8-3/16)
62
40
(1-5/8)
134
(5-5/16)
90
(3-9/16)
59
(2-3/8)
134
(5-5/16)
Manual Control Rings and User Assignable Buttons
Take total control of the scene with dual large rings for
zoom and focus, and IRIS dial for smooth shooting.
What’s more, functions you want
can be allocated to 9 buttons and
4 cursor levers, so settings can be
changed smoothly during recording,
making professional operation really
easy.
Fully Customizable Settings and Full Auto Simplicity
For more advanced visual expressions, detailed image settings
such as gamma and color shade can be customized. All those
customized settings are stored on the SD card, and can be
called up whenever necessary. If speed is your maximum
Tele/Wide Macro Shooting
The GY-HM250 features the Tele/Wide Macro mode to provide
better focus on close objects. A clear focus is maintained even
at a distance of approx. 60cm from the subject at tele end.
Heavy-duty Handle Unit with Various Controls
The detachable heavy-duty handle makes the GY-HM250 easy
to carry — and also makes it simple to shoot from low angles,
thanks to its built-in REC button with lock function, and zoom
lever. 2ch XLR audio inputs
are provided for the
attachment of a professional
Zoom Lev er
Rec Button
XLR Input (2ch)
microphone or for LINE input,
complete with Phantom
power supply capability.
concern, you can always go with Full Auto operation or
engage Auto partially for certain functions. Reliable shooting
is assured even in Auto mode.
Highlight Display Priority Mode
Particularly effective for areas of high brightness, this mode
records footage with more natural tones and richer colors.
Perfect for scenes with bright sky and reflective surfaces.
“OFF” at MACRO Menu “TELE+WIDE” at MACRO Menu
Highlight Display Priority mode OFF Highlight Display Priority mode ON
Dual SDHC/SDXC Card Slots for Maximum Versatility
Dual SDHC/SDXC card slots make the GY-HM250 a truly versatile camcorder, offering such benefits as series recording,
dual recording, and backup recording modes using reliable and cost-effective media.
• Series (relay) recording mode:
• Dual (simultaneous) recording mode:
Continuous recording card by card.
Recording to 2 cards at
Backup Recording
same format for backup or multi-purpose.
• Backup recording mode:
is used to REC and STOP recording on one card,
the other card can act as a continuous backup that
overrides the pause function.* This is a unique
While the Rec trigger
Slot A
Pause
Rec Pause Rec
mode highly demanded by theatrical and bridal
camera crews.
*During simultaneous backup recording in HD mode, the
duplicate file records in the same file format and bit rate as the original.
Slot B
HD-SDI (3G) and HDMI Output
GY-HM250 comes with a wide variety of connectors to meet the needs of professional applications, including HD-SDI (3G)
and HDMI. Secured digital connection is assured between external devices such as a recorder or switcher. Simultaneous
output from both SDI and HDMI is also possible.
Dimensions
Unit: mm (inch)
149
(5-7/8)
40
(1-5/8)
307 (12-1/8)
207 (8-3/16)
191
(7-9/16)
52.5
(2-1/8)
62
(2-1/2)
(HOOD)
197 (7-13/16)
245 (9-11/16)
90
59
(3-9/16)
(2-3/8)
134
(5-5/16)
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Specifications
GENERAL
Power DC 12V (AC ada ptor), DC 7.4V (batte ry)
Power consumption Appro x. 8.5 W (with V F in 4K REC mode, def ault settin g)
Weight Approx. 1.47kg (including battery)
Dimensions 149 (W) x 191 (H ) x 307 (D) mm
Operation temperature 0˚C to 40˚C
Storage temperature -20˚C to 50˚C
Operating humidity 3 0% to 80 %
Storage humidity Under 8 5%
CAMERA
Image s ensor 1/2.3-i nch back-sid e illumi nated CMOS, tota l 12.4M pixel s
Synchronizing Internal synchronization
Stabilizer Optical image stabilizer
Shutter speed 1/6 — 1/10000
Lens 35mm equiva lent: 2 9.6mm to 35 5mm
Filter diameter 62mm
Gain 0, 3, 6, 9, 12, 15, 18, 21, 24 dB, Lolux ( 30, 36 d B), AGC
ND filter Non e, 1/4, 1/16
LCD display 3.5-inc h 920 k pixels, 16:9
Viewfinder 0.24- inch 1.5 6 M pixel, 16:9
VIDEO/AUDIO RECORDING
Recording media
Video recording
Audio recording LPCM 2ch, 48 kHz/ 16-bit (4 k/H D/SD M OV), AC3 2ch (AVCHD), μ -law 2ch (Proxy)
LIVE VI DEO STR EAMI NG
Protocol RTMP, MPEG2-TS/UDP, MPEG2-TS/RT P, RTSP/RTP, Zixi
Resolution a nd bit ra te
INTERFACES
Video output AV output (3. 5mm mini jack x 1), SDI o utpu t (BNC x 1), HDMI o utput x 1
Audio input XLR x2 (MIC , +48V/LINE), 3. 5mm min i jack x 1
Audio output AV outpu t (3.5mm mini jack x 1)
Headphone 3.5mm mini jac k x 1
Remote 2.5mm m ini jack x 1
USB HOST x 1 (ne twork Conn ection), DE VICE x 1 (mass sto rage)
PROVIDED ACCESSORIES Handle unit, battery (SSL-JVC50 ) x 1, AC adapte r x 1
2x SDHC /SDXC mem ory card (4 K (150Mbps): UHS -1 U3 4K (70Mbps), H D: 50Mbp s Class 10, HD: 35Mb ps Class 6, AVCHD/ SD Class 4), Hi gh-Spee d: UHS-1 U3
Video co dec: MPE G-4 AVC /H.26 4 (4K /HD/ SD/P roxy), AVCHD (H D/SD)
File format : MOV (H.26 4), MTS ( AVCHD), MP4 (Excha nge format: U m odel onl y)
1920 x 108 0 (59.94i/50i) Audio AAC 128 k 12/8/ 5/3 Mbps
1280 x 720 (59.94p/5 0p) Audio AAC 12/8/5/3 M bps
1280 x 720 (2 9.97p/25p) Audi o AAC 128 k 8/5 /3/1.5 Mbp s
720 x 48 0 (59.94i) 720 x 576 (50 i) Audi o AAC 128 k /64 k 8/5/ 3/1.5/0.8 /0.3 Mb ps
640 x 3 60 (29.97p/25p) Audio A AC 128 k/64k 3/1.5/0 .8/0.3 M bps
Recording Formats
System Format Resolution Frame rate Bit rate Audio
4K
HD
SD
WEB (Pr oxy)
High-Speed
QuickT ime
(MPEG-4. AVC/H.264)
AVCHD 1920x1080
Exchange MP4
(U model o nly)
QuickT ime
AVCHD
QuickT ime
AVCHD
QuickT ime
(MPEG-4. AVC/H.264)
AVCHD
QuickT ime
(MPEG-4. AVC/H.264)
384 0×2160 29.97p/25p/23.98p 150Mbps/70Mbps (YUV 4:2:2/Normal)
1920x1080
1280 ×720 59.94p/50 p 35Mbps (UHQ)
1920x1080
1280 x720 8Mbps (LP) 752 mi n.
720×48 0
(U model )
720×576
(E/EC m odel)
960×540 29.97p/25p/23.98p 3Mbps (HQ) μ-law 2ch 16 kHz 2160 mi n.
720×48 0 59.94i
720×576 50i
480×270 29.97p/25p/23.98p 1.2Mbps (LP) μ-law 2ch 16kHz 4720 min.
1440×1080 59.94i/50i 9Mbps (LP), 5Mbps (EP)
720×48 0 59.94i
720×576 50i
1920x1080
59.94p/59.94i /50p/50i/29.97p/25p /23.98p 50Mbps (YU V4:2:2/XHQ ) 145 min .
59.94p/59.94i /50p/50i/29.97p/25p /23.98p 35Mbps (UHQ)
59.94p/50 p 28Mbps (HQ)
59.94i/50i 24Mbps (HQ), 18Mbps (SP) 312 min./400 m in.
59.94p
59.94i 8Mbps (HQ)
50i 8Mbps (HQ)
120 fps 59.94p/29.97p/23.98p
100f ps 50p/25p
60fps 29.97p/23.98p
50fps 25p
12Mbps (LP)
8Mbps LPCM 2ch 4 8kHz/16bit 760 m in.
8Mbps
50Mbps (XHQ), 35Mbps (UHQ) — (Differs by setting)
LPCM 2ch 4 8kHz/16bit
Dolby Di gital 2ch 48kHz /16bit
256kbps
LPCM 2ch 4 8kHz/16bit 760 m in.
Dolby Di gital 2ch 48kHz /16bit
256kbps
LPCM 2ch 4 8kHz/16bit 760 m in.
Dolby Di gital 2ch 48kHz /16bit
256kbps
Dolby Di gital 2ch 48kHz /16bit
256kbps
Optional Accessories
SSL-JVC50
Standard Li-ion
Battery (IDX)
DC7.4V, 4900m Ah, 37Wh
SSL-JVC75
Long-life Li-io n Battery w ith
X-Tap Connector (IDX)
LC-2J
7.4V 2-ch Simultaneous
Charger (IDX)
DC7.4V, 7350mAh, 55Wh
AAC
Rec Tim e on 64GB SD Car d
50 min./105 m in.
200 min.
270 min.
512 mi n.
842 min.
842 min.
760 min./134 4 min.
760 min.
RM-LP100
Remote Came ra
Controller via LAN
Product and company names mentioned here are trademarks or registered trademarks of their respective owners. "AVCHD Progressive" and "AVCHD
Progressive" logo are trademarks of Panasonic Corporation and Sony Corporation. HDMI, the HDMI logo and High-Definition Multimedia Interface are
trademarks or registered trademarks of HDMI Licensing LLC. Dolby is a trademark of Dolby Laboratories. Zixi and the Zixi logo are trademarks of Zixi
LLC. The SD, SDHC and SDXC are trademarks of the SD Card Association.
DISTRIBUTED BY
E.&O.E. Design and specifications subject to change without notice.
Copyright © 2017, JVCKENWOOD Corporation. All Rights Reserved.
The values for weight and dimensions are approximate.
Simulated pictures.
KCS-8460
"JVC" is the trade mark or regis tered tradem ark of JVCKENWO OD Corporat ion.
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