It is almost impossible to buy a new machine.

It seems that there are more than 2,000 sets of D3000 machines.

If it's a second-hand SLR

Personally recommend pentax KR

————————————— The following is Phoenix Jianren 20 12 12 18 February pure hand.

Choice of SLR: Nikon, Canon, Pentax, Sony.

For specific prices, please refer to JD.COM Mall and Zhongguancun Online. The unit price ranges from 3000 to 40000 yuan.

We strongly recommend Nikon D7 100 and Canon 60D, both of which are above the mid-range price. Control and configuration will be better.

Selection of card machine

The choice of nouveau riche Lycra M, Sony RX 1

Petty bourgeoisie's choice Fuji X-PRO 1, X-E 1, X 100 Sony NEX7, NEX6, NEX5, NEX3, RX 100 Hummer DP series (with special colors) Canon G 1X Panasonic.

G series represented by Canon G 15 (personally, G 12 and G 1X are classical), Nikon P7 {{{

One thousand to two thousand Canon SX series, Canon IXUS series, Fuji F series.

Canon IUXS 1 15, Fuji Z909 less than one thousand.

If you have knowledgeable friends, it is ok to buy second-hand ones. Hummingbird trading platform, Zhongguancun online photography forum, Taobao.com, Jiji.com and 58 cities also have this function, but we need to be cautious.

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1, about cost performance

It is a misunderstanding and a simple pursuit of cost performance. It's all Japanese, don't count on it!

Relatively speaking, the portable telephoto machine has comprehensive functions, small size and high cost performance.

Choose a camera with a price you can accept and you think it is enough.

2. About patriotism and domestic production

Patriots, who are famous for their patriotism, fool consumers, which is really cheating.

None of the core components are their own. Is it a "domestic product" to change the shell?

These manufacturers should learn from Samsung and practice their internal strength, instead of trying to fool their own people.

3. About the place of purchase

Generally don't care about money, you can go to Gome and Suning physical stores or manufacturers to designate sellers.

But I want to be realistic. I can only say that the price of Gome Suning's physical store is a pothole.

Basically, the price of a certain camera can be higher than the normal level.

In addition, you can choose a more reliable store to buy in the local digital plaza.

What is reliable? I think, first, it is introduced by friends, second, it is widely praised, and third, it is officially appointed.

If that friend bought it, you feel good after the trial flight, and there are many favorable comments on the Internet.

Even the designated maintenance point of Nikon Canon, that is reliable.

Others can go to JD.COM Mall if it is easier, followed by Excellence and so on.

If you buy second-hand, go to the hummingbird. Com and Zhongguancun online photography forum.

Taobao also has it, but it is deeper. Second-hand is risky, so be careful when buying it.

The above is just a personal opinion. If you don't agree, you have your own opinion.

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Let's exchange some important references for choosing digital cameras.

1, sensor size

There are two types of digital camera sensors: CMOS and CCD. At present, back-illuminated CMOS is the main sensor. The advantages of CMOS are functional integration, more diversified functions, stronger compatibility and lower mass production cost than CCD. Although the picture quality is not as good as CCD, the difference is too big, and it is acceptable after technical treatment.

The size of the sensor directly determines the image quality. Generally speaking, the larger the size of the sensor, the better the image quality. Of course, different technological periods cannot be simply compared.

Mainstream frame size: medium frame > 135 Quan Huafu > APS-H & gt；; APS-C & gt； 4/3 > 1/ 1.6 > 1/ 1.23。

Sony is the pioneer of back-illuminated CMOS; Canon has developed rapidly, especially video photography; Fuji combines its own super CCD EXR with CMOS, which is also a new way.

2. Pixels

The problem of pixels is mainly the problem of manufacturers fooling consumers.

For most people,10 million pixels is enough. Excessive pixel value is a common concern of commercial photography. Usually, people don't use photos of that size, and most photos take up computer space. In the same size photosensitive element, the larger the pixel, the smaller the area of each pixel, and the less light it receives, which affects the imaging effect.

3. The bigger the lens and aperture, the better. The more expensive the lens, the better.

When buying, try to buy something with a larger maximum aperture value. On the one hand, larger aperture value is beneficial to image quality, on the other hand, it is more conducive to adapting to dark environment. From the maximum aperture, few lenses have the best image quality, and the maximum aperture is usually reduced by three levels. As far as the lens is concerned, the maximum aperture value and aperture control range are very important, and a smaller aperture is conducive to displaying more details.

The larger the optical zoom factor of the lens, the better. In fact, with the increase of zoom factor, the image quality will plummet. It is best not to exceed five times. The so-called large aperture emergency or hand training can be done, and it is best to emphasize high image quality.

Many people have zoom lenses and fixed-focus lenses in order to have a large aperture and have certain adaptability.

The quality of the lens is also very important. The famous ones are Leica lens, nikkor lens lens, Canon lens, Schneider lens, carl zeiss lens, Sony G lens and Pentax lens. There are some deputy factories, so let's not talk about it.

4. Brand

In fact, this still depends on it. Nikon and Canon are the main traditional SLR cameras, but Pentax is the originator of 135 SLR camera, but now it is a bit small.

In the new SLR, Olympus and Panasonic have been in operation for a long time, but the frame is limited, and 4/3 of them are smaller than APS-C. Personally, I think the future development trend is rather embarrassing. Sony has taken a different approach, and Fuji has also entered this field. Each manufacturer's emphasis is different, which must be understood.

Carney, Canon, Nikon, Panasonic, Fuji and Sony are recommended brands.

Generally, when choosing a brand, it is best to choose a company with a deep optical background.

Nikon, Canon, Pentax, Fuji and Olympus are all old manufacturers for decades. Ricoh also has a long history, but now it is really a minority. I don't know what will happen in the future, so I don't recommend it for the time being.

Although Sony is very powerful, it has been looking forward to it in the camera field before it acquired Minolta Konica camera business, but it has not really opened up the situation in the traditional SLR field, which is one of the reasons why it has taken a different approach.

SLR: Nikon, Canon, Pentax, Sony;

Micro-single: Sony, Olympus, Panasonic, Fuji, Sigma;

Telephoto machine: Fuji, Canon, Nikon;

Card machines: Canon, Panasonic, Fuji, Nikon, Sony.

5. The applicability of lenses is the best in the original factory, and the deputy factories are Shima, Tuli and Longteng.

The important reason why other SLR manufacturers are difficult to open up the situation is that there are not enough lens groups and other accessories as support. You can look at brochures of various SLR manufacturers.

Nikon Canon is the first choice. These two have their own advantages. Secondly, I personally recommend Pentax.

Nikon and Canon have different bayonet types, so Nikon's bayonet is smaller and Canon's bayonet is larger, which is why Nikon with the largest aperture is smaller than Canon, and Canon is an electronic bayonet. Actually, it's no big deal I'm just saying.

In terms of lens, Tuli, Longteng and Sigma are three famous deputy factories. However, there is no special reason to choose the original lens, and the deputy factory can also produce good quality lenses through reverse engineering, but it seems that the original factory does not want the deputy factory to make this money now.

Step 6 manipulate

More intuitive is the number of buttons on the camera (including custom buttons). Of course, in fact, the so-called operability does not stop there. How can I put it? You can adjust the corresponding parameters quickly and conveniently according to your needs. The larger the adjustable parameters and range, the shorter the time required and the better the control.

The number and position of keys and the function settings of corresponding positions are exquisite, and the electronic operation interface is set. The size and humanization of each part of the camera is mainly the feel.

But apart from using, it is really difficult for ordinary people to know what it looks like except by looking at the number of keys and their corresponding functions. Fortunately, the problem is not fatal.

7, focusing and metering system

In fact, there are also card machines, but they can be basically ignored.

Canon and Nikon represent the best level in this field, at least as a whole.

By the way, the low-end SLR uses a five-sided mirror, and the high-end single-shot viewfinder uses a Wuling mirror.

The latter is brighter and clearer, but there are differences in visual range and magnification.

8, the fuselage material

Card machines are basically plastic, but few are metal. Solid point of metal, but the thermal conductivity is obvious. The better SLR is made of magnesium-aluminum alloy, which is light and strong, generally waterproof and sand-proof.

This is a reference factor, what price and what configuration.

This is almost the main content that needs attention.

There are some others,

For example, the screen, its pixel value, its visual range;

For example, the place of origin is generally the best in Japan, but many of them are from Suzhou and Thailand.

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Pay attention to when buying a machine:

1 First, go online to find out the camera parameters, prices and accessories you want to buy, and you can write them down in your notes for comparison during inspection.

2, don't buy a memory card, the boss will match it when inspecting the goods. You can ask the boss to send one if you are sure to buy it. If you feel that the quality of the card sent by your boss is not good, you can go to a store to buy a memory card. The specific size depends on your needs. I suggest that it is better to be within 8G, which will affect the storage speed.

3. After negotiating the price with the boss, open the box face to face and check whether the package is completely sealed. Talk to the boss before unpacking, and there will be no unpacking fee if there is any problem!

4. After unpacking, let the boss take out the goods himself and check whether the accessories are complete.

5. Unpack the inner package and check whether the three yards are consistent. Check to see if there are any traces on the fuselage, especially the metal contacts and lens bayonet. Whether there are traces on the metal contacts of the battery.

6. After installing the battery memory card and lens, start the machine and set the time. Take a 30-second all-black and all-white film, enlarge it or put it on the computer to see if there is anything wrong.

7, accessories, UV mirrors are necessary, camera bags, tripods can be considered. Be careful not to be slaughtered, and try to get the boss to send it! The light and shadow magician can check the shutter number.

8. Invoice and pay.

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recommend

In terms of specific recommendations, I won't talk about specific models.

If it is not bad money, we will buy new ones instead of old ones, but the price of electronic products will drop rapidly, and the flagship products of the previous generation will be a good choice.

Traditional SLR: Nikon, Canon, Pentax, Sony;

Micro-single: (fashion, lens adaptability)-Sony; (Control)-Olympus, Panasonic; (Quality and patience)-Leica, Fuji;

Consumer machine: Fuji (high cost performance, full function, not super function, but enough) -F series,

Canon (the best humanization, comprehensive balance, but no cost performance) -IXUS series (fashion, women), SX series (portable telephoto machine, travel, men)

Panasonic (solid workmanship, excellent image quality), Nikon (moderation)

Telephoto machine: Fuji (manual focusing ring, good hand training, but there are also problems) -HS series, Canon, Panasonic, Nikon.

Professional card machines: Panasonic LX series, Canon G series, Nikon P7*** series, Canon S series. Sony RX 100, RX 1, fuji x series and sigma DP series are all heterogeneous products.

The specific model can refer to the scope of your own fund.