JVC GY-HM850E (GYHM850E, GY HM850E, GY/HM850E, gy-hm850e) Full HD Shoulder-Mount ENG Camcorder
The GY-HM850 is a very nicely-weighted shoulder-mount form factor camera. This GY-HM850CHE version comes with new interchangeable Canon KT14 wide angle lens, with a focal length of 4.4 x 62mm. The GY-HM850 provides outstanding full HD image capture and delivery, while the built-in streaming engine, FTP and GSM connectivity allows live HD transmission directly from the camera without requiring additional encoding hardware.
The camera features three, 1/3-inch 2.07 effective megapixel CMOS sensors, capturing full 1920x1080 images. The imagers provide 12-bit processing, F12 sensitivity (50Hz) and excellent signal-to-noise ratio to produce superior colour reproduction. Continuing JVC’s commitment to native file workflows, the GY-HM850 records HD or SD footage as Final Cut Pro (.MOV), XDCAM EX (.MP4), AS-10 (.MXF), AVCHD (.MTS), or H.264 (.MOV) files for compatibility with most major NLE systems. Footage can be recorded using MPEG-2 or H.264 compression at a variety of bit rates, frame rates, and resolutions. Dual codecs offer simultaneous recording of a full HD file on one memory card and smaller, web friendly H.264 files on the other. Plus, a new H.264 Extreme High Quality (XHQ) recording mode, commonly used in HD SLRs, offers virtually lossless H.264 50 Mbps recording.
Dual SDHC/SDXC card slots allow simultaneous recording (for instant client copy/backup) or relay recording (for continuous shooting) to low cost, non-proprietary media. During simultaneous recording, one card can act as a continuous backup that overrides the pause function triggered by the operator. Relay recording allows virtually unlimited recording capability in the field.
The 800 Series cameras significantly expand on the live HD streaming and file transfer capabilities introduced in the popular GY-HM650 mobile news camera. JVC’s exclusive dual codec design allows the new cameras to transmit live HD footage or transfer files in the background while users continue to record footage in their normal workflow. When paired with a GSM modem or Wi-Fi adapter, which is connected directly to the camera via USB, the camera transmits footage to a facility in real time. JVC provides different stream protocols to maximize the streaming results: UDP, TCP, RTP/RTSP, ZIXI. The Advanced Streaming Technology (AST) feature provides content-aware error correction, bandwidth shaping, and real-time feedback of streaming status.
The camera provides secure FTP file transfer on location, as well as live monitoring and extensive camera and lens control via Wi-Fi from a smartphone (iPhone, Android), tablet (iPad, Android), PC or Mac. For broadcasters who use metadata, a built-in GPS allows location information to be recorded. Plus, metadata can be edited on a smartphone or tablet and transferred to the camera via Wi-Fi. The GY-HM850 is also compatible with Advanced Streaming Services, powered by Zixi, for reliable live content delivery.
The GY-HM850 includes genlock and time code terminals for multi-camera setups, HD/SD-SDI out, HDMI out, 3.5mm stereo headphone jack, and a four-channel audio system with stereo AUX inputs and two XLR mic/line inputs with phantom power. Other features include 12 assignable user buttons, 10-second Pre Rec (retro cache), focus assist, interval recording for time lapse footage and variable frame rate recording for over/under crank effects.
High Performance Full HD 1/3-inch CMOS Sensors
At the heart of the GY-HM850 are three 1/3-inch 2.07 effective-megapixel CMOS sensors, each capable of capturing full HD 1920 x 1080 resolution images. Featuring 12 bit read-out, an excellent sensitivity of F12 (50Hz) and a remarkable signal-to-noise ratio, the devices provide superior precision and color reproduction with minimal aberration. For improved CMOS sensor performance, flash-band compensation is also supported.
Newly-developed 20x Fujinon Auto Focus Zoom Lens with Manual Functions
The GY-HM850 is equipped with a newly-developed Fujinon wide-angle 20x zoom lens offering one of the highest magnifications in the industry. For superior low-light performance and assured brightness at the tele end, the lens offers F1.6-3.0, a focal range of 29mm-580mm (35mm equivalent) and includes servo zoom, along with manual focus and iris rings. Optical image stabilizer and chromatic aberration correction are also built into this interchangeable 1/3-inch bayonet mount lens. The built-in Optical Image Stabilizer (OIS) helps to correct lateral and vertical movement of the camera, ensuring that pristine HD images remain sharp and stable. For users who prefer a manual lens, JVC offers a wide range of Fujinon and Canon lenses compatible with this camera.
Outstanding sensitivity, LoLux™ function
The GY-HM850 produces outstanding images under a wide range of lighting conditions. Minimum illumination is less than 1 lux: 0.15lx (typical)*. JVC's exclusive LoLux feature permits shooting in adverse lighting conditions. LoLux can be assigned to a USER button, and set in the menu to offer +30dB or +36dB of gain. A convenient gain switch provides default gain values of -6dB, 0dB, +9dB. These switch positions can be adjusted to various gain amounts from -6dB to +24dB. An ALC mode is also available to boost gain values from +6dB to +24dB. Standard sensitivity of the GY-HM850 is measured at F12@2,000 lux.
(1920 x 1080 mode, F1.6, Lolux mode, 1/30 or 1/25 shutter
Revolutionary FALCONBRID™ Dual Codec Image Processing Engine
FALCONBRID™ is JVC's high-speed processor for advanced video applications. Delivering tremendous processing power on a single chip, the on-board FALCONBRID™ engine processes large amounts of video data at exceptional speeds. Together with this technology, superior image quality has been realised with 2D DNR processing and compensation circuitry for wide dynamic range. The GY-HM850 utilises dual codec FALCONBRID™ processors that make it possible to record full HD to a memory card, and stream live video to the web simultaneously. The camera is also capable of recording to two memory cards in two resolutions, one in full HD and one in SD, or to a smaller web-friendly file. Depending on connection speed, the smaller files can often be transferred faster than real time for delivery to websites or file-sharing services.
MPEG-2 and AVCHD Recording
The GY-HM850 supports both the popular MPEG-2 Long GOP 35/25/19Mbps format, widely used by television broadcasters, and the highly efficient AVCHD format, which provides compatibility with most affordable editing systems. This means that professionals have unprecedented flexibility to meet production standards through a wide range of workflows. With the revolutionary dual codec, the GY-HM850 also supports simultaneous HD/SD or HD/proxy recording. Also supported is the MPEG-4/AVC H.264 1.2 Mbps SD format.
Ultra and Extreme High Quality Recording Modes
The GY-HM850 is also equipped with the H.264 Extreme High Quality (XHQ) 50Mbps mode for virtually lossless compression, even when recording fast moving objects. MPEG-4 AVC/H.264 offers approximately twice the compression efficiency of MPEG2. Its superior motion prediction ensures a smooth and detailed picture with virtually no block noise in rapid action sequences. The XHQ mode is available when recording 1920 x 1080 at 50p, 50i, 30p and 24p. The GY-HM850 further provides the H.264 Ultra High Quality (UHQ) 35Mbps recording mode, again offering superior image quality but with smaller file sizes.
Multiple File Formats for Native Workflows
Record HD or SD footage directly in ready-to-edit QuickTime™ MOV files, the native file format of Apple's Final Cut Pro™. Native file recording ensures your footage is ready to edit the moment it's shot, resulting in a more efficient workflow and no loss of image quality. For direct editing in other major NLE systems such as Avid Media Composer, Adobe Premiere and Grass Valley Edius Pro, it is also possible to record XDCAM EX™ compatible MP4 files for a likewise seamless native workflow. *H.264 SD MOV file can be edited by Grass Valley Edius Pro
Support for MXF Files with Rich Metadata
A highly efficient file-based workflow is essential to any modern news organization. To ensure file interoperability with the widest range of broadcast production tools, JVC has worked with the Advanced Media Workflow Association (AMWA) on its "AS-10: MXF for Production," establishing a common MXF file format for an end-to-end news production workflow. MXF files are embedded with rich descriptive metadata that is added before, during or after shooting. The AS-10 MXF format builds on the SMPTE RDD 9, the MXF interoperability specification of Sony MPEG Long GOP Products (XDCAM HD.)
Dual SDHC/SDXC Card Slots for Maximum Versatility
Dual SDHC/SDXC card slots make the GY-HM850 a truly versatile camcorder, offering such benefits as simultaneous recording and relay recording with reliable and cost-effective media. In relay recording mode, you can shoot continuously and seamlessly over multiple cards. When one card is full, the camcorder switches seamlessly and automatically to the other card. And because cards are hot swappable, there is in effect no limit to the continuous shooting time in any mode, even with lower capacity cards.
It is possible to start editing footage from one card while still shooting to the other. With simultaneous recording, you can easily create backup or duplicate files as you shoot without the need for any external equipment—either for a client copy or simply for peace of mind. Additionally, while the Rec trigger is used to pause and unpause recording on one card, the other card can act as a continuous backup that overrides the pause function.
SDHC/SDXC media offers the best combination of price, availability, capacity, reliability and transfer speed. With no moving parts and no pins or other extrusions, SDHC/SDXC cards are both durable and reliable, and compare favorably with tape on a cost-per-minute basis. * During simultaneous backup recording in HD mode, the duplicate file records in the same file format and bit rate as the original. Backup recording is not available in AVCHD mode.
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