The devices, JVC's first 50Mbps camcorders, each feature dual codecs, advanced HD streaming, 12-bit image processing and an interchangeable 20x autofocus zoom lens.
The camcorders feature interchangeable Fujinon 20x autofocus zoom lens and deliver 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 additional encoding hardware.
Both the GY-HM850 and GY-HM890 models have a weighted shoulder-mount, with the GY-HM890 also designed for use as an HD studio camera or multi-camera field production camera. It has a multi-pin connection that accommodates JVC fibre or multi-core camera modules and is compatible with a full range of studio components, including customised studio sled, zoom and focus controls, CCUs and 8.4-inch LCD viewfinder, as well as box-style lenses from Canon and Fujinon.
The GY-HM890 also includes an HD/SD-SDI pool feed input that can record and stream video and audio from another camera or SDI source during press conferences or other pool feed environments. The cameras also support LANC remote controllers as well as JVC's proprietary wired remote control system.
Both camcorders feature three, 1/3-inch 2.07 effective megapixel CMOS sensors, capturing full 1920x1080 images. The imagers provide 12-bit processing, F12 sensitivity (50Hz) to produce a superior signal-to-noise ratio colour reproduction.
The new Fujinon wide angle 20x zoom lens features auto focus, built-in optical image stabilisation and chromatic aberration correction. The interchangeable 1/3-inch bayonet lens also includes manual focus and iris rings.
"We believe the future is with the live video streaming and FTP service fully integrated into the camera, as demonstrated with the GY-HM850 and GY-HM890," said
"With the recent advancements in GSM availability and bandwidth, service providers can deliver reliable high-speed connections that can support HD streaming with a single modem. This technology is here now, and will continue to progress and improve."
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The GY-HM850 and GY-HM890 record HD or SD footage in native files 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.
Each camera features a built-in processor with proprietary algorithms that maximize bandwidth to ensure reliable transmission even under difficult conditions. Advanced content aware error correction compensates for up to 30% packet loss, supported by Zixi streaming solution and streaming protocol. Stream and signal status is provided in the high-resolution 4.3-inch LCD monitor and LCOS colour viewfinder.
The cameras provide 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 and GY-HM890 are also compatible with Advanced Streaming Services, powered by Zixi, for reliable live content delivery.
Both models include 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
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