JVC GZ-HD7
Encyclopedia
The JVC GZ-HD7http://camcorder.jvc.com/microsites/GZHD3/hd7.html high definition camcorder was launched in 2007. This is one of the first camcorders that records high definition video on a built-in hard drive, as well as onto a secure digital memory card
. It is the first consumer camcorder to record in 1920x1080 resolution, sometimes nicknamed FullHD.
The camcorder records in three quality modes with different data rate and frame size. The medium quality mode, "1440CBR", delivers the same frame size, aspect ratio and frame rate as 1080i HDV
and can be loosely called "HDV on disk". The camcorder preserves compatibility with the tape-based video format, giving an opportunity for recording onto a hard drive instead of tape.
Secure Digital card
Secure Digital is a non-volatile memory card format developed by the SD Card Association for use in portable devices. The SD technology is used by more than 400 brands across dozens of product categories and more than 8,000 models, and is considered the de-facto industry standard.Secure Digital...
. It is the first consumer camcorder to record in 1920x1080 resolution, sometimes nicknamed FullHD.
Lens, sensor and recording technique
The camcorder employs three 1/5-inch 16:9 progressive scan CCDs in a diagonally offset pixel configuration. Signals are processed first as 1920 x 1080p progressive signals, then converted to 1920 x 1080i interlace signals for recording. JVC does not explain in greater detail how exactly progressive signal is converted to interlaced, but claims that chosen approach allows recording a higher resolution HD image than the interline (IL) CCD system.The camcorder records in three quality modes with different data rate and frame size. The medium quality mode, "1440CBR", delivers the same frame size, aspect ratio and frame rate as 1080i HDV
HDV
HDV is a format for recording of high-definition video on DV cassette tape. The format was originally developed by JVC and supported by Sony, Canon and Sharp...
and can be loosely called "HDV on disk". The camcorder preserves compatibility with the tape-based video format, giving an opportunity for recording onto a hard drive instead of tape.
Specification
- Sensor: 3 x 1/5" CCDs
- Sensor resolution: 3 x 530,000 effective
- Lens speed: f/1.8-f/1.9
- Filter Diameter: 46mm
- Optical Zoom: 10x
- Image Stabiliser: optical
- Headphone Out: No
- Microphone In: Yes
- LCD Screen: 2.8"
- Recording media: built-in 60GB HDD, SDHC Class 6 memory card
- Connectivity: HDMI out, Component out, FireWire Out, S-Video Out, AV Out, USB 2.0
- Dimensions, mm: 91x77x186
- Weight: 750 g
- MegaPixels: Approx 1 Gigapixel (75 Megapixels)
- Scenic Mode
Product Information and Reviews
- JVC press-release, JVC Develops First Consumer Full HD Recording 3-CCD Camcorder System
- Lori Grunin, CNet, JVC GZ-HD7 review
- John E. Johnson, Jr., Home Theater and High Fidelity, JVC GZ-HD7 review
- Colin Barrett , Simply DV, JVC GZ-HD7 review
- James Murray, CamcorderInfo, JVC GZ-HD7 first impressions
- John Neely, CamcorderInfo, JVC GZ-HD7 review
- Steve Mullen, Digital Content Producer, JVC GZ-HD7: World’s First 1920x1080 MPEG-2 Camcorder, Part 1
- Japanese JVC GZ-HD7 product page (in Japanese)