Controls And Features

Controls And Features
The central part of a DV camcorder is the CCD, orCharge Coupled Device. This sensor creates a videopicture by recording the light intensity to recognizean image or shape, along with the color levels toreproduce a full color picture.
There are several tape based DV camcorders that haveboth color eyepiece viewfinders and a flip out TFTLCD screen to view the action as well as the previousrecorded footage. Most tape-less models however, only offer the TFT screen to preview your capturedvideo and to view while you make a recording.
When you need to get closer to the action, a zoomlens can be a great feature. Don't get swayed bythe digital zoom figure however; as no matter howlarge it may be, you should always base your finaldecision on the optical zoom.
The optical zoom will give you a true indication ofthe video image, where digital zooms interpolate theavailable pixels to zoom in on an image. Opticalzooms will normally range around the 10X mark, withdigital zooms ranging from 100X and above.
The auto focusing systems are great as well, althoughmanual focus options can be ideal for low light orwhen focusing on a subject against a landscape. Beingavailable on most video cameras, the manual focuscontrol can be found as either a ring on the lens or as a dual button system on the body.
Most video cameras these days will provide a tiltingfeature in the camera itself, although this featureshould be avoided unless you don't intend to editthe video on a computer. The title effects on many cameras are quite limited and cannot be removed afterwards.
Almost all new high definition video cameras willuse a rechargeable Li-ion battery, even though a spare battery might be useful as the batteries areunique to each camcorder maker and normally eachmodel.
Most of the latest cameras allow you to capture digital still images onto a removable flash memorycard. The most popular media is SD or MMC, butSony and Samsung cameras often capture to a memorystick.
If your video camera doesn't offer still imagecapabilities, you can always perform a capture ofthe screen in your editing program. Always rememberthat the image resolution when capturing a stillthis way will always be 640X480, which is actuallyless than 1 MB, or Mega Byte.
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High Definition Video

High Definition Video
HDTV or high definition television normally refersto any video system of higher resolution than thestandard definition. The original HD specificationsdate back to the early 1980s, when Japan firstexperimented with a 1025 line television standard.
Japan presented their parameters at an internationalmeeting of television engineers in Algiers in 1981and Japan's NHK presented their analog HDTV systemat a Swiss conference in 1983. Except for theseearly formats, HDTV is digital broadcast and therefore it's introduction will sometimes conincidewith the introduction of DTV, or digital television.
The signals for high definition require a high definition television or a computer monitor in orderto be watched or viewed. High definition video will normally have an aspect ratio of 16:9. Theaspect ratio of the regular widescreen film that isshot today is normally 1:85:1 or 2:40:1. The standard type of television has a 4:3 aspect ratio.
High definition television resolution is 1080 or720 lines. With the contrast, regular digitaltelevision is 480 lines or 576 lines. The currentquality with DVD is not high definition, althoughhigh definition systems such as HD-DVD and Blu-Rayare both expected to be and ship later on in 2006.
The most noted feature with high definition videois the fact that it's so life like. There is HDTV,and HD video cameras. High definition is very popular these days, with television being at the top of the list.
High definition video cameras are getting just aspopular, as they offer you the chance to capturememories like never before. HD offers you videolike never before, making you wonder if things arethis good now - just what will video in the futureactually be like?
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Major Components

Major Components
All video cameras contain 3 major components - thelens, imager, and recorder. The lens gathers andfocuses the light on the imager, which is normallya charge coupled device (CCD) or CMOS sensor IC.Finally, the recorder will encode the video signalinto a form that can be stored. Commonly, the opticsand imager are known as the camera section.
The optic lens is the first component in the camerasection's light path. The optics normally have oneor more the following adjustments: 1. aperture - controls the amount of light 2. zoom - controls the field of view 3. shutter speed - captures continuous motionIn most consumer units, these adjustments are automatically controlled by the video camera's electronics, normally to maintain constant exposureonto the imager.
The imager is the "eye" of the camera, housing aphoto sensitive device or devices. The imager worksto convert light into an electronic video signal through an elaborate electronic process. The camera lens projects an image to the imager surface,exposing the photo sensitive array to the light.
The light exposure is then converted into an electricalcharge. Towards the end of the timed exposure, theimager will convert the accumulated charge into acontinuous analog voltage at the imager's outputterminals.
The third piece, the recorder, is responsible forwriting the video signal to a recording medium,such as magnetic videotape. The recording functioninvolves many steps of signal processing, andhistorically, the recording process introduced some distortion and noise to the stored video, such that the playback of stored signal may notretain the same detail as the original live feed.
All but the most primitive of video cameras willalso need to have a recorder controlling section which will allow you to control the camera. Youcan also swich the recorder into playback modefor reviewing your recorded footage.
The image you recorded doesn't need to be limitedto what appeared in the view finder. For a documentation of events such as those used by thepolice, the fields of view will overlay such things as the time and date of the recording alongthe top and bottom of the image.
As you can probably tell now, a high definitionvideo camera is very complex indeed. There are several other parts involved as well, although theabove are the most important. A HD video camerais very complex in build, making it somethingthat is more than worth the time it takes to create.
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Sony New HD Camera

Sony New HD Camera
When Sony first unveiled the H3 to the market, itstaged none of the over the top glitz or glamourmany expected. Held at a tiny theater inside aSony office in Tokyo, the event barely even resembled a minor product launch.
Although many don't think of Sony as a camera maker,the company is number 1 in video cameras, holdingon to well over 40 percent of the market. Sonyis a leader in many other industries as well, withcameras helping to add the icing to the cake.
The HDW is the top of the line camcorder from Sony. The HDW 900 is capable of recording and playing back 1080 progressive at 23.98 or 24, 25,29.97, or 30 frames per second. It can also playback 50 or 60 fields per second at 1080 interlaced.
The camera also offers a memory stick setup systemthat memorizes various parameters and enables instantrecall. Once you set the camera up for the first time, it will remember the settings then go rightback to the previous parameters at the touch of abutton.
A simple switch operation will enable automaticadjustment and black set, black balance, and evenwhite balance. You can quickly and easily shiftcolors with the video camera, making it easier touse than most other high definition video camerason the market.
The HDW 900 from Sony will come standard with HDzoom lens, a tripod, AC power supply, and 3 AntonBauer Hytron 100 batteries. With everything it offers you and everything it comes with right fromthe box, the HDW 900 is truly nothing short of amazing. If you've been waiting for the perfecthigh definition video camera - rest assured thatthe HDW 900 is it.
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