How Digital Camcorders Work
By Richard Gazzo, Fri Dec 9th
/p> The first was invented by Jerome Lemelson in 1980. Andsince that time the first bulky analog video camcorders haveevolved into the modern digital camcorder, so small they can fitin the palm of your hand, and so clear they rival evenprofessional broadcast video cameras. Consumers have been using camcorders since early 1980s. Sincethen they have gotten better and cheaper, with prices startingat only a few hundred dollars, making DV camcorders affordablefor anyone. Shooting home videos is fun, everyone loves filmingtheir families during special events. From your kids birthday,your son's soccer game, to the family trip to Mexico, but howexactly do video cameras work? Digital video cameras convert analog video into a digitalformat. Digital video camcorders take the analoginformation in the video camera and then translate it into bytesof data. Digital video is converted from moving images to astream of zeroes and ones. The digital video recordsthe bytes of digital information onto one of three items, a harddisk, a dv tape, or a DVD. From there you have the ability totransfer the video to your computer. You can then edit thevideo, email it to friends and family or even add the video to awebsite.
The digital video process begins at the lens in the camcorder.The lens stores and then focuses light from the video that youare capturing onto the image sensor located behind it. Becausethe Charge- Coupled Devices (CCDs) used by camcorders arecapable only of measuring the amplitude of the light hitting thephotodiodes on their surfaces, a system of filters is requiredto establish just what color that light is. Another part of the camcorder, that plays an important role isthe viewfinder. Originally view finders where black and white,as time progressed viewfinders have evolved into color LCDscreens. This is a necessary part of the camcorder,
it lets yousee what you are filming. Newer models of viewfinders even letyou add effects to your video via an LCD touch screen while youare filming. Newer DV camcorders can not only shoot high definition video (upto 720 lines) but models such as the Sony hdr-fx1 hdv camcorder, Canon xl2 and the Canon zr200 mini dv camcorder evenoffer digital still image capabilities. You can snap crystalclear images with resolutions up to 1024 x 768, perfect forfamily photos. Need to email your videos to friends and familyacross the globe, no problem. With the MPEG feature you can evenemail short video clips to any one with an email address!Grandparents in Europe can see your daughters birthday 4 minutesafter you have filmed it in the U.S.A! Even though current digital video camcorders come in a range ofsizes and shapes, the techniques used to convert moving pictureshasn't evolved much. But the styles of digital camcorders haveevolved. You can find digital video camcorders come in alltypes, from dvd camcorders to mini dv camcorders. As technology changes video isnot restrained to digital video cameras. cell phones now havethe capability to shoot video and email the clips instantlyanywhere in the world. It's hard to predict how far videotechnology can go, the sky seems to be the limit. About the author: About the author: R Gazzo offers info on digitalcamcorders. Read digital reviews on Sony camcorders & more.
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