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High Definition Has Arrived

A while back, Sony, Sharp, Canon and JVC announcedthe creation of a new high definition video standardfor video cameras - HDV. HDV utilizes MPEG-2 imagecompression with a definition of 1080 lines and a16:9 aspect ratio.

Shortly after that, Sony opened the door to highdefinition by creating the first HDV camcorder, theHDR-FX1. This release was on par with the launchof the first DV camcorder in 1995, which at the time was a giant step forward for image quality,marking the break from traditional analog.

At the time, consumers were moving from the Hi8format to DV, which featured much better image quality, along with the ability to transfer to acomputer without any degradation of signal. WithHDV, the resolution of camcorders can be doubled,from 576 lines to 1080. The compression method isno longer DV, but MPEG 2 instead.

HDV exists in two formats - 1080i (interlaced) and720p (progressive). With interlaced, the videocamera records 1080 lines in interlaced images,which is half images of 540 lines each that aredisplayed 60 times per second.

With 720 progressive, the video camera records 720 lines in progressive images, which are fullimages that are displayed 30 times per second. Sony chose to use 1080i on the HDR-FX1, where JVCchose to use 720p for the GR-HD1, which is soldonly in NTSC format in the USA and Japan.

The progressive mode format requires a televisionset that supports it, while interlaced mode isthe natural scan mode that televisions use. Thequestion today is which of the two formatsdeliver the best image quality.

With several high definition video cameras on themarket today, the question of image quality alldepends on the camera and features, along withyour television or method of play back. All highdefinition video cameras are amazing in qualityand playback, which is why they have become so popular is such a small amount of time.

With Sony, JVC, and Canon continuing to developHDV, you know the technology will continue to getbetter and better. When high definition first hit the market, it was an instant success. Withthe integration of HDV, camcorders allow you todo what you never could before.

If you like to record precious memories, a highdefinition video camera is just what you need. Theyare very handy to have around, and there are several out there these days for you to choose from - all you need to do is pick the best onefor you.

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