Rus Articles Journal

How to choose a video camera?

When in 1896 Lumiere was shown by brothers the movie “Arrival of the Train“, people in fear began to run out from movie theater. Today the motion picture art does not look such unknown and unclear wonder of the world any more. Moreover, in the 21st century everyone can shoot own film. And for this purpose use even phones. But it is much better if you in hands have a video camera.

Having come into any shop of electronics, you will see a set of models. From amateur to professional, from tiny to large-size. On what to stop the choice? By what criteria, except price to be guided in the choice of the model? Let`s consider this question in details.

1. The format

Is, perhaps, the most important point at the choice of a video camera. If you just are going to conduct family archive if you are not especially concerned by installation of your video, then you can stop the choice on the models writing on dvd or the hard drive.

The materials which are written down on dvd are extremely whimsical and difficult in editing therefore video cameras of this kind will suit only those people who will never mount the finished shooting material. That it is enough to whom to pull out a disk from a chamber, to insert into a player and to enjoy viewing. Video cameras with HDD carrier type (hard drive) are inconvenient the fact that when shooting outdoors you are limited to winchester volume. As soon as on it the place ends, your film process will end. Also it will renew only after you throw the finished shooting material on the computer.

For the people who are professionally engaged in video filming for many years miniDV (in professional types of chambers it is the DVCAM format, which main difference in distance on a tape between paths and bigger reliability) was the main format. Inhabitants often with scepticism treat this format. And it is absolutely vain. Small kassetka on which remove these video cameras it is not a remnant of the past at all. MiniDV cartridges, contrary to delusion of ignorant buyers, write information as well as other chambers in a digital form. And this format possesses the smallest degree of a compression and, therefore, writes down the picture in very high quality.

Look at professional chambers which TV men use. All of them write on a film. However today miniDV in the amateur market are already absent in a type of their inconvenience and complexity for the ordinary inhabitant. Chambers of this kind can be met only in category of professional. In some shops (especially at the Internet - sellers) still can be met inexpensive models with a tape-recording, but it is already HDV - chambers. The technology of work at them just the same, but the main advantage is what on a film of HDV of video is written in a quality format.

Chambers reckon with flash now - carriers as the most perspective. They allow to write information in the AVCHD format with the resolution of 1920 x 1080. Says the fact that today practically all leading firms offer the professional video cameras writing on the USB stick (Canon XH G1, Panasonic AG - HMC154ER, Sony of HDR - AX2000E) about prospects of this format.

2. Optics

the Second important point in the choice of a video camera. Optics for a video camera the same that an eye for the person. Through an optical lens information arrives inside. Undoubted leaders Sony and Panasonic firms to which optics many years already make a spetsializiruyushchiyesyan it firms look here. On lenses of Sony it is proud the name Carl Zeiss is engraved, and Panasonic puts lenses of Leica Dicomar firm on the video cameras.

As well as cameras, video cameras are supplied with the ZOOM function. Sellers often mention about it, praising highly these or those goods. ZOOM happens two types: optical and digital. In the first case approach happens due to movement of lenses, and in the second due to increase in scale of the picture. The big indicator is not necessary here since when shooting from hands increase over tenfold will give you strongly shivering shots, as if you did not try to hold hands directly. As for digital increase, many owners of chambers absolutely turn off it not to worsen quality of the removed picture.

3. The matrix

the image will be transformed by

To an electric signal thanks to a video camera matrix. The it is more, the quality of the picture is better. The size of a matrix is determined by its diagonal and is measured in inch shares - 1/6“, 1/4“, 1/3“. The this number is more, the best clearness of the picture is provided to you by a video camera.

That is a matrix of 1 / 3 in size“ is much better, than 1/6“.

It is necessary to tell that today the video cameras equipped with three matrixes (3CCD) are offered many buyers. Advantage of such models is that they give a deep water of color because the getting light is displayed on RGB - components (green, blue, red), each of which registers in a separate matrix. Any professional video camera is always model with three matrixes, each of which not less than 1/3 in size“.

However it is expensive models and if to watch more budgetary options whether always three matrixes are better than one? Absolutely not. Here it is necessary to compare and look, the difference in sizes is how strong. For example, the small chamber with a big matrix 1/2,7“ will give (Canon HV40) much the best picture, than a big chamber with three small matrixes 1/6“ (Panasonic NV - MD10000). Though the last will look in your hands very solidly and to inspire in people around a false look that you the first-class operator with superserious equipment.

4. The image stabilizer

to Remove the equal picture sometimes it is problematic even for professional operators what to speak about fans. For this purpose the system of stabilization is provided in video cameras. As well as in a case with ZOOM, it happens two types: optical and electronic. Sellers often only just mention that stabilization of the image is provided in this or that chamber. Surely specify what, and whenever possible makes the choice for those models which are allocated with optical stabilization.

5. A photosensitivity

It is natural, you will not always have an opportunity to remove in the bright sunny day. Sometimes it is necessary to remove in the low-lit rooms, in the dark evening. Therefore such characteristic of a video camera as its photosensitivity is very important. The less than a figure is specified in technical parameters of the chosen model, the less light is necessary for it and the better it will give the picture in the conditions of bad illumination.

6.

At the description of video cameras this information many sellers output the number of pixels the largest letters and can even suggest you to buy this model because in it the number of pixels are more. Actually, for shooting of video it is the most unnecessary information.

Standard television permission 576ő720, i.e. 414720 pixels, and permission of the Full HD format - 1920ő1080 (2073600 pixels). Clearness of video signal is measured in TVL (television lines) - to transfer to resolution the maximum quantity of details of the image. The this point is higher, the image will be more qualitative. In old analog VHS image sharpness was about 240 TVL, in DV - chambers - already 500 TVL, and in chambers of the most high definition this value reaches to 1000 TVL.

As for pixels, their quantity is significant only for photos which can be done by this video camera. However to take the picture, most of people nevertheless buy cameras.

Also at the choice of a video camera it is necessary to look what sockets are present at its case (whether it is possible to attach to it the external microphone, nakamerny light or to connect to the TV on HDMI) whether there is on a chamber a manual focusing, the function of a zebra indicating overexposed sites of a shot, etc.

Nevertheless, whatever model you chose, remember that your future movie depends not so much on it, how many on you. From your knowledge, abilities and talent.