How can a digital camera tell the difference between good and bad? For example, some parameters of t

First of all, look at the brand, the camera is not expensive, but it is not casually started, the brand often means that the quality and after-sales service of the machine can be guaranteed, and now the brands with a good degree of recognition are Canon in Japan, Nikon, Fujifilm, Sony, Panasonic, Olympus, etc., Kodak in the United States, etc., among which Nikon, Canon is the unquestioned industry leader.

Secondly, it depends on the configuration and storage medium of the camera: whether to use CCD or CMOS, consumer-grade digital cameras generally use CCD, and SLR uses CMOSGenerally, the larger the CCD size, the better the imaging quality.

For example, the CCD of 1 is better than the CCD of 1, and the second depends on the pixel size, generally speaking, the pixel is also proportional to the imaging. Then it depends on whether there is a manual function (that is, M gear, you can manually adjust the aperture, shutter, sensitivity, **compensation, etc.), and the camera with a full manual function is the first choice for photography enthusiasts.

As for the storage media, except for Sony, which only uses memory sticks, and Olympus, which can only use XD cards, which are more expensive, other storage media are very cheap. The difference in the storage medium lies only in the convenience of data reading and storage, which does not affect the imaging of the camera.

Finally, perhaps the answer you want the most: for the so-called camera model is constantly updated, more is the update of the manufacturer's product library, which does not mean that the quality of the new machine will be much improved, as a consumer does not have to pay too much attention to the optimistic machine, its parameters should have a preliminary understanding, what to do is to see if there are black spots and bright spots.

Measure the bright spots: cover the lens, do not let the light enter, and carefully see if the LCD screen has non-black bright spots;

Detect black spots: Point the camera at an all-white object and take a few photos to see if there are any non-white spots.

When choosing a digital camera, the most important thing is to look at a few parameters:

This is a misunderstanding, in fact, the problem related to pixels is only that millions of pixels can output a few inches of relatively clear **. If it is the commonly used 4R**, in fact, 5 million pixels has already exceeded the task, and the basic configuration of the current digital camera has reached 7 million.

The image sensor of the camera, equivalent to the human heart), is a very important parameter, the larger the size of the CCD, the better, the general configuration parameter is a few to a few after the ratio is as large as possible, now the large ratio is 2 3but sufficient for household use).

3.The lens (very important), look at the brand (Chase Leka Schneider, etc., the lens of well-known brands like Nikon Canon, etc.) will not be a problem. )

4.Depending on the usage, you can choose a fully automatic function or a manual function.

5.Other parameters such as appearance, durability of the power supply, etc.

If it's for home use, generally I take performance as the main reference, followed by appearance.

Here are a few things you can think about:

1) Pixel: First of all, I need to explain that the quality of a camera depends on many aspects, in people's consciousness, we will feel that the higher the pixel**, the higher the clarity, but in fact, it is not. When recommending, the salesperson will definitely tell you how high the camera is 12 million, 14 million, and so on.

At this time, you need to pay attention to the premise of high pixels, the first thing you need to pay attention to is what kind of lens this camera is. Sony (Carl Zeiss, CMOS,

Sony), Canon (Canon lenses, CMOS), Panasonic (Leica, Panasonic) so you have to pay attention to the choice of lens.

2) Screen: There are two points to pay attention to; First: the clarity is not displayed from the screen, and the clarity can only be distinguished by putting it on the computer.

Second: Don't choose a screen that is too big, too big can be seen clearly, but it is very power-intensive. So choose carefully.

3) Memory card: Now some machines are dedicated memory cards, such as Sony is MS card. Canon Samsung are all big cards (this kind of card is more popular, very well matched, ** is also more moderate).

Hello landlord.

What aspects should digital cameras pay special attention to? The first is the test of bad pixels and noise, you can go to the next software in this area, take a full black and all white **, black is used to measure bad pixels, and white is used to measure noise.

Secondly, about the difference between licensed goods and parallel goods:

1: 800 according to the manufacturer

8206027**Enter the serial number of the fuselage (each is unique) to distinguish the authenticity.

2: Warranty card and camera serial number all the time.

3: The national insurance card of the Chinese insurance company, and there are three guarantees of after-sales service.

4: Chinese Simplified Chinese manual. (Don't open it).

About the rework machine: Check the appearance. See if it is opened, whether there are scratches, fingerprint marks, etc. View the LCD (liquid crystal display). See if there are "dead pixels" (black or white dots that can't be erased, which can't be displayed.)

image), dead pixels may expand during use. Check whether the accessories are complete (check the configuration instructions). Some unscrupulous merchants will take out individual accessories.

See if the rechargeable battery is "second-hand". Inspect the battery before it is placed in the battery compartment, if the lithium battery has been used, there will be visible scratches on the metal contacts.