【 Weak current College 】 purchases four misunderstandings of the digital camera

The camera can be regarded as the last few years just pop up a digital product, QQ chat, video conference, is it a thirst. Even miles between friends, as long as we have it and the Internet, we can speak of "face to face", very convenient. With the growing popularity of broadband by now, the camera is also rapidly developing, family, Internet cafes, offices, can see it, to introduce consumers to buy a camera that is easy to fall into four major mistakes.
Myth 1: pixels higher the better?
　　
"This is how many megapixels?", this is a lot of friends to buy a camera is asked most frequently in a Word, but businesses often brag about it in this regard, the big blow products how to how good, how the pixels high, how how to clear the screen. So, what exactly has played pixels of a pixel? is higher, the more clear image?, we know in fact not the case, the image sensor has a number of photographic elements, each of the photographic unit corresponds to one pixel, the more pixels, the image is generated. And as for the image if it is clear, light look pixel but no, it's also the lens material, software, processing, and other aspects are closely linked.

In addition, in the market we have common camera pixels are generally 30 million or 35 megapixels, and some businesses tend to say that their products can reach the interpolation 120 megapixels, which is all about?, the camera is using the software interpolation work out, simply put is 640 x 480 pictures widen to 1024X768, then use the software calculates the picture resolution of differences between the points, the middle color of the part of the fill color of calculation software. Do while output pictures, but the quality of the image and no real improvement, or even possibly serious distortion.

Therefore, we purchased the camera must be kept in mind: pixels and the image sharpness is not absolute.
　　
Myth 2: CCD than CMOS?

In fact, the structure of the camera is not complicated, itmainly by the DSP (master IC), SENSOR (photographic equipment), LENS (lens) and peripheral circuits and software driver combinations. With photographic devices is a major technical core, its principle basically consistent with DC, DV. In today's digital imaging fields, photosensitive cells simply CCD or CMOS, including former development time longer, in DC or DV areas more widely applied; and our common camera you use relatively inexpensive CMOS-sensor. But you can never think that a certain ratio using CCD CMOS camera, it's only manufacturer of selling points too! small series have used a large domestic 1XXX element of the camera, the sensor is CCD, however the actual use of results and compare "COMS camera" is not an absolute advantage, even in clarity also slightly less.

Therefore, we buy the camera, don't blindly believe businesses, use COMS's camera isn't the difference than CCD, we need to spend more than 10 times the money on?

Myth three: lens really matter?
　　
A lot of friends when buying a camera, just think of cheap or light thinking pixels, completely ignored the lens is good or bad. The camera's lens is made of glass or plastic lenses. Glass lenses are not only more expensive than the cost of plastic lenses, light transmittance and imaging quality also has a large advantage. However, many small plants, in order to save costs, and the pursuit of high profits, often reduce the number of lenses, or use the cheap plastic lens. Although these products are much cheaper in price, looks very attractive, but the actual image is but it is unable to compliment.
　　
So we buy the camera, not just for the sake of cheap, or try to choose glass LENS of the camera as well.

Myth 4: Mike function really practical?
　　
Individual merchants in marketing their business camera, touted the camera's Mike function. UH! camera + mic sounds all well and good, but if you buy a home with you, you will find, in fact, did you imagine so chic: video chat, in order to enable each other to hear your voice, you need to reach the camera neck, to no, you have to simply hold the camera when the phone is used, of course, at that time can see you and that is another matter.

Of course, the we do not rule out some excellent quality MIC effect, good camera does occur, but if this camera and ordinary post is too large compared to it, we really need to buy? as single a MIC, the effect is excellent, price/performance ratio and high, why?

Therefore, we buy the camera, never too much about those "chicken" function, there is no good, of course, it does not matter, there is no need to waste money in these areas.