Along with the vigorous development of the digital video camera market, manufacturers are constantly introducing new products, and the functions of the products are becoming more and more powerful. Faced with various digital cameras and various technical parameters, it is inevitable that some consumers who are not well versed in this way will be allowed to consume. I am confused. In fact, for any digital video camera, image quality is a concern for everyone, so the direct impact on the quality of the image is the sensor (also known as the pixel CCD) and the lens. The liquid crystal display and the media storage used in the process are also two more critical issues. Then, as long as you notice the above four points, you can choose a satisfactory digital video camera.
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Sensor and pixel
In the past, the image sensors of digital cameras used single CCD or 3CCD. For example, Panasonic has many products using 3CCD. In 2006, Sony preferred to install CMOS sensors on digital cameras. The appearance of CMOS sensors on digital video cameras is a requirement for digital cameras to enter the high-definition era. Its emergence has accelerated the process of high-definition cameras and the popularization of high-definition cameras. For digital video cameras, the higher the pixel, the more helpful the improvement in image quality. At present, mainstream products have reached more than megapixels. The total pixel size of 3 million, 4 million pixels, is currently not uncommon in the market, if the purchase budget is sufficient, then choose high-pixel, or CMOS sensor products.
Lens and zoom
For digital cameras, the lens is like an eye. The quality of the lens also has an impact on the imaging of digital cameras, and excellent lenses are the guarantee of image quality. As we all know, the imaging quality of German optical lenses is well-known worldwide. Sony and Carl Zeiss have many years of cooperation history. Many Sony digital camcorders use the famous Carl Zeiss Vario-Sonnar T* lens, which has laid a solid image quality for Sony digital cameras. Foundation. In addition, the cooperation between Panasonic and Leica also gives Panasonic a certain advantage in the competition of digital cameras.
The lens of the digital camera has a zoom function. The more common one is the 10x optical zoom lens, but some products use a 20x optical zoom lens. The large zoom ratio optical lens can clearly enlarge and reproduce the scene that cannot be seen in the past. Generally, digital video cameras also have an electronic zoom function, but in the case of turning on the electronic zoom, the image quality will be greatly affected, so there is not much practical use.
LCD screen
For any digital video camera, the LCD screen is also responsible for framing, playback, and viewing menu operations, so it is also critical. At present, the mainstream digital camera screens have reached 2.5 inches or more, and the larger the size of the screen, the better the results can be obtained in the framing or playback and menu operations. At present, LCD screens for digital cameras are beginning to show some 3.5-inch products. The screen has a touch function, and the menu operation can be operated intuitively on the screen. It is very convenient for those who are not very proficient in digital products. After Sony first introduced a touchable screen, Canon, Panasonic and other manufacturers have also launched such products.
16:9 is another popular trend of DV screens. It is said that the 16:9 display is based on the optimal size of the distance between human eyes, enabling people to feel the best visual impact when watching video content. . In addition to DV, the 16:9 widescreen mode has actually become popular in both LCD TVs and computer monitors. For example, the Sony DVD camera DCR-DVD905E, Panasonic GS400, etc. all use 3.5-inch and 16:9 light touch wide LCD screen.
Storage medium
The storage media of digital video cameras can be divided into four categories: tape, DVD, hard disk and flash memory. Hard disk and DVD discs are the mainstream products on the market and become the first choice for consumers. The hard disk digital video camera stores the captured images on the hard disk in MPEG-2 format. Omit the previous steps of tape digital video cameras that need to capture and convert formats. After connecting to a computer, you can directly burn DVD discs. The capacity of hard disk digital video cameras on the market ranges from 20G to 60G, with a maximum capacity of 60G.
A digital video camera using a compact disc as a storage medium can simultaneously burn a DVD disc while shooting, and can be considered for users who do not have excessive requirements for post-editing. Nowadays, several major manufacturers including Sony, Canon, Hitachi, Panasonic and Samsung have DVD disc digital camera products.
I believe that after reading these words, you can already have a basic understanding of digital video cameras. You should pay attention to what you should pay attention to when purchasing. Choosing the right digital camera, this is just the first step to the life of the image. Proficiency in the operation of the equipment in hand, and constantly improve the experience of their own shooting, for a DV enthusiast, it is also a necessary homework.
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