Buy digital camera knowledge to understand the important 4 points
Booming digital camera market, manufacturers continue to introduce new products and product features are also more powerful, the face of a wide range of digital cameras, and various technical parameters, some not so familiar with this for consumer confusion is inevitable. In fact, for any a digital camera, the image quality is of concern to all, then the image quality has a direct impact is the sensor (that is, we are commonly referred to as pixel CCD) and lens these two points, the use of the process of liquid crystal display, and how media storage, but also the two key issues. As long as noted above 4 points, you can choose to a satisfactory digital camera.
Sensor and pixel
Previous image sensors of digital cameras are single CCD or 3CCD, for example, has many uses 3CCD Panasonic products. Sony Handycam in 2005 the first to CMOS sensors installed in the tape DV-DCR-PC1000E, the following is the 2006 CMOS digital camera in Sony DCR-DVD905E DVD and meet the standard high-definition hard drive camcorder AVCHD HDR-SR1E body. CMOS sensors in digital cameras, is in high definition digital video camera into the requirements of the times, it accelerated the emergence of HD cameras and HD camcorders of the process of universalization. For the digital camera is concerned, we have a common sense, that is, the higher pixel image quality enhancement for more help. Current mainstream products have reached more than megapixels. The total pixel 3 million, 400 million pixels of products, currently in the market are also common, if wealthy enough to buy the budget, then the choice of high resolution as possible, or a CMOS sensor products.
And zoom lens
For digital cameras, the lens is like the eye. Lens quality digital camera for imaging also has affected the lens is excellent image quality assurance. As we all know, the German optical lens of world-renowned image quality, Sony and Carl Zeiss has a long history of cooperation, several types of Sony digital cameras are using the famous Carl Zeiss Vario-SonnarT * lens for Sony digital camera's image quality laid solid foundation. In addition, Panasonic and Leica have cooperation.
Digital camera with zoom lenses, the more common and more with 10x optical zoom lens, but there are some products using 20 optical zoom lens, such as the Sony DCR-SR40E is equipped with such a large zoom digital camera than the lens. Large optical zoom ratio lens, you can not see the distant past, the scene clearly in front of amplification, to reproduce. Digital cameras are also generally have the electronic zoom function, but the case of open electronic zoom, image quality will be relatively large impact, not many of the actual use of significance.
LCD screen
A digital camera for any, the LCD display also responsible for the shooting, playback and view the menu operation of these efforts, it is quite critical. At present, the more mainstream of digital camera screens, have reached a 2.5-inch screen size larger, both in the viewfinder or playback, and menu operation, all can get better results. The current digital camera's LCD screen gradually began to appear some 3.5-inch products. Function with a touch screen, menu operations can be on the screen and intuitive operation, for those not very fluent in digital products, people, it is convenient. After Sony introduced the first touch-screen, the Canon, Panasonic and other manufacturers have introduced such products.
16:9 is another popular DV-screen directions, allegedly based on a 16:9 display is designed for the distance between human eyes, the best size, can make people feel when watching video content the best visual impact. In addition to DV, the reality in terms of LCD TV or computer monitors are already popular 16:9 widescreen mode. For example, Sony DVD Camcorder DCR-DVD905E, Panasonic GS400, Sony's two new HD camcorders: HDR-UX1E and HDR-SR1E have adopted a 3.5-inch and 16:9 wide LCD touch screen.
Storage media
Digital camera storage media can be divided into tape, DVD disc, hard drives and flash memory four categories. Hard drives and DVD discs are currently on the market mainstream products, has become the first choice of consumers.
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