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Wednesday, August 10, 2011

JVC GY-HM790U Pro HD Camcorder

The JVC GY-HM790 ProHD ENG / Studio Camera is a modular, 1/3" shoulder-mount video camera that's equally at home in the studio or in the field. Capable of recording 1080i/p, 720p, and 480i video to native MP4 or Final Cut Pro files for the most efficient workflow, the GY-HM790 also offers a full complement of broadcast features, including HD-SDI output, 4:2:2 sampling, timecode, genlock, and variable frame rates. Its ability to record to dual, hot-swappable SD/SDHC cards means affordable access to readily available media, which can be coupled with an optional SxS recorder for extended or backup capture.


Equipped with the same 3-CCD imaging system found in the GY-HM790U, JVC’s ProHD flagship camcorder, the GY-HM750U delivers  1920x1080 images in a small, lightweight form factor. It records at selectable data rates up to 35 Mbps and can record HD footage in 720p, 1080p, and 1080i, as well as SD footage (480i). 



Specifications


GENERAL
Power
DC 12V (11-17V)
Power consumption
Approx. 27W (Recording mode with standard lens and LCD monitor in use)
Weight


Approx. 3.7kg (GY-HM790U-CHU) / Approx. 3.9kg (GY-HM790E/CHE)
(Including lens, viewfinder, microphone, battery)
Operating temperature
0℃ to 40℃ (32°F to 104°F)
Storage temperature
-20℃ to 60℃ (-4°F to 140°F)
Operating humidity
30% to 80% RH
Storage humidity
Under 85%
CAMERA
Image sensor
1/3" Progressive scan 3CCD
Lens
Canon F1.6, 14x, f=4.4-61.6mm (35mm conversion:32 to 448mm)
Lens mount
1/3" bayonet system
Filter diameter
82mm
Shutter speed
1/6 to 1/10000, EEI
Gain
0dB, 3dB, 6dB, 9dB, 12dB, 15dB, 18dB, ALC
ND filter
OFF, +1/4 ND, +1/16 ND
Minimum illumination
1.25lx (typical) (1920x1080 mode, F1.4, +18dB, with 8-frame accumulation)
Synchronizing system
Internal sync: buit-in SSG / External sync: BB, VBS signal or HD tri-sync signal
LCD display
4.3” LCD, 800 x 480 (WVGA, 410,000 pixels)
Viewfinder
0.45” LCOS, 1,226,000 pixels (852 x 480 x 3)
VIDEO / AUDIO
Recording media
SDHC memory card (Class 6 or Class 10), 2 slots
Video recording


Video codec: MPEG-2 Long GOP
File Format: Quick time format for Final Cut Pro/mp4 file format Note*1

HD Recording mode
HQ mode: VBR, 35Mbps (1920 x 1080i 50/60, p24/25/30) MPEG-2 MP@HL
SP mode: CBR, 25Mbps (1440 x 1080i 50/60) / 19Mbps (1280 x 720p 24/25/30)MPEG-2 MP@H-14;
19Mbps (1280 x 720p 50/60) MPEG-2 MP@HL
SD Recording mode
DV compression 4:1:1(NTSC: GY-HM790U/CHU only)/4:2:0(PAL: GY-HM790E/CHE), 8-bit, 25Mbps
Video Frame Rate
NTSC setting HD HQ mode:
1920x1080/59.94i, 29.97p, 23.98p, 1440x1080/59.94i (MOV only), 1280x720/59.94p, 29.97p, 23.98p
HD SP mode: 1440x1080/59.94i, 1280x720/59.94p 29.97p, 23.98p
NTSC SD mode: 480/59.94i (GY-HM790U/CHU only)
PAL setting HD HQ mode: 1920x1080/50i, 25p, 1440x1080/50i (MOV only), 1280x720/50p, 25p
HD SP mode: 1440x1080/50i, 1280x720/50p, 25p
PAL SD mode: 576/50i (GY-HM790E/CHE only)
HD HQ 720p mode - NTSC setting: 10/12/15/20/24/30/40/48/60fps / PAL setting: 10/12.5/20/25/40/50 fps
Audio recording
HD: Linear PCM 2ch, 48 kHz / 16 bit, SD: Linear PCM 2ch, 48 kHz / 16 bit
INTERFACE
Video output
Analog Composite output (downconverted 480i or 576i, 4:3/16:9): 1.0V (p-p), 75-ohms, BNC (unbalanced; switchable from analog component Y output)
Analog Component output (downconverted 480i or 576i; 720p /1080i) : BNC x3 (unbalanced)
Y: 1.0V (p-p), 75-ohms Pb, & Pr: 0.7V (p-p) 75-ohms
SDI output (downconverted 480i or 576i / 720p /1080i: embedded audio) BNC (unbalanced)
HD-SDI: Compliant with SMPTE 292M / SD-SDI: Compliant with SMPTE 259M
Video input
Analog Composite input: 1.0V (p-p), 75-ohms, BNC (unbalanced: switchable from Genlock Input) (GY-HM790U / HM790CHU only)
Genlock input
1.0 V (p-p), 75 ohms, BNC (unbalanced)
Audio input


[MIC] -60 dBu, 3k-ohms, XLR (balanced), +48V output (phantom power supply)
[LINE] +4 dBu, 10k-ohms, XLR (balanced)
Audio output
-8±1 dBu (audio signal process output at +20 dB), 1k-ohms, RCA X 2 (unbalanced)
Headphone
φ3.5mm mini jack (stereo) x2
Time-code input
0±6 dBs, high impedance, unbalanced (BNC; switchable from component B-Y output)
Time-code output
0±6 dBs, low impedance, unbalanced (BNC; switchable from component R-Y output)
IEEE1394 output
4 pin
Remote connector
DIN 6 pin
USB
Mini USB-B type, USB2.0, mini B, slave function (mass storage class) only

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