JVC GZ-HD7

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The JVC GZ-HD7 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.

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[edit] 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 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.

[edit] 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

[edit] See also

[edit] Product Information and Reviews

[edit] Practical Solutions

[edit] Sample videos