I want to buy a digital camera. What important aspects should I pay attention to?

In the photographic equipment market, there are many styles of cameras and accessories to choose from. For most families, cameras are valuable items. Perhaps the initial snapping up of cameras is exciting, but it is also daunting, especially after the choice proved to be a very wasteful wrong choice. Therefore, it is suggested that friends decide the model according to the actual needs and economic situation when buying cameras, and don't blindly buy high-end cameras with many "extra functions".

Although some manufacturers have tried to produce a single camera that can meet all the needs of photography, the result is regrettable. No camera can meet all the needs of photography as an ideal boutique. So, either you have to limit your photography work according to the work that the camera you choose can undertake, or you have to buy several different types of cameras to meet all the needs you may encounter.

There are many kinds of cameras. According to the frame size, cameras can be divided into large cameras (such as the studio machine, which can be used to shoot loose pages), medium cameras (such as 120 camera, which is used to shoot 6 cm ′ 6 cm, 6 cm ′ 9 cm and other frames) and small cameras (such as 135 camera, which is used to shoot 24 mm ′ 36 mm frames). According to the way of framing, it can be divided into two categories: coaxial framing (single lens framing) and paraxial framing (viewfinder is located above the lens or obliquely above it). According to the degree of exposure automation, it can be divided into manual, semi-automatic and full-automatic (called "fool") cameras.

At present, 135 camera is the mainstream model of household cameras. From the experience, the camera model 135 is small in size, easy to carry, convenient for framing and focusing, and convenient for developing color film, and there are many brands of cameras, including medium, high and low grade. You can buy according to your own needs.

If it's just for taking commemorative photos or traveling with you, you can buy a 135 side camera. This kind of camera has three types: automatic, semi-automatic and manual. Generally, it has a flash and can be used in dark environment. This kind of camera is relatively simple to operate. If you want to use it for artistic creation, you still need to buy a mid-range single-lens reflex camera, but it can't be a "fool" type. There should be a manual adjustment device to manually control exposure and depth of field according to creative needs. If conditions permit, you can also match your own lenses with different focal lengths.

When making a specific choice among many brands, I suggest you consider the following factors:

1. What is the function of this camera? Are these functions exactly what you need? The main technical problems are: framing mode, working mode of focusing mechanism, focal length metering and exposure mode of lens, film winding mode and flash mode, etc.

2. Is it convenient to use?

3. Is there a corresponding series of accessories? If there are lenses with different focal lengths that don't match the fuselage, connect appropriate filters to add them when necessary.

4. Whether the price is reasonable.

After deciding to buy a certain model, you should choose carefully:

1. Appearance inspection: whether it is metal shell, plastic shell or leather, it should be flat and free of scratches, deformation and wear marks. The connection between the lens and the fuselage should be firm and tight. The back cover and the fuselage should also be seamless. There is no sign of repeated disassembly.

2. lens inspection. The quality of the lens directly affects the imaging quality, so you should pay special attention when choosing. If the lens is detachable, it can be disassembled. If it is a fixed lens, you can set the shutter speed at door B, open the back cover, aim the lens at the bright place, and check whether there are mildew, big bubbles, cracks and scratches. On a lens that transmits light. Also use the reflected light to check the coating from the side for scars. The aperture blades of the camera should be flexible and free from rust or oil pollution. When adjusting the aperture, you should feel smooth, not too astringent.

3. Check the focusing device: when focusing, the focusing ring should make people feel a little resistance, but it is not astringent and even. The image in the viewfinder should be clear and bright. If it is an automatic exposure camera, make different scenes in the center of the viewfinder and try whether the autofocus system is sensitive. In the manual focusing system, the scale line at infinity on the focusing ring should be aligned with the baseline. When observed in the paraxial viewfinder, the images at infinity should completely overlap in the center of the viewfinder, and the divided images in the viewfinder of a single-lens reflex camera should be aligned. When focusing on a close object, you can measure the distance between the scene and the camera with a tape measure to check whether the scale on the focusing ring is accurate.

4. Check the exposure device: open the back cover and shoot and expose scenes with different brightness. If it is an automatic camera or an automatic exposure camera, try the response of automatic aperture and automatic shutter. For manually exposed cameras, check whether the display data of the exposure meter changes when the scene brightness is different, and listen to whether the shutter opening time is different when exposed at different shutter speeds.

5. For cameras with flash, check the flash. Turn the flash switch to "ON" on the premise that the battery is in good condition. When the charging indicator is on, press the shutter. Try flashing the flash several times in a row, and pay attention to the charging interval of the flash, not too long.

6. Check the film conveying structure and other mechanical devices: the camera with automatic film winding should be able to automatically wind up the film after loading and shooting exposure. Manual film feeding camera should feel a certain tension when feeding film. The counter should work normally and return to zero automatically when the cover is opened.

7. Display screen inspection: For fully automatic cameras, install batteries to see if there is a display on the screen, and follow the instructions to check whether the displayed symbols are consistent with the operation results.

Finally, I would like to remind my friends that the above selection methods should be approved by the sales staff, and you should not act rashly to avoid getting into trouble.

General regulations

Sony

Nikon

Olympus mt

Orion belt

Casio

Kodak (brand)

Mount Fuji

Matsushita Co., Ltd.

Binder

Ricoh

So many brands of cameras are very good,

[Shanghai] 1500 yuan to 2000 yuan is the most worthy of DC summary in the near future.

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Do more with less. The best-selling DC shopping guide within 2000 yuan.

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Recommend a Samsung Digimax α5.

Advantages: reversible liquid crystal, focusing auxiliary light, compatible with various memory cards and batteries.

Disadvantages: the fuselage is thick, and many kinds of manual DC fall into 2k to become the cheapest manual DC, and the sales volume is on the rise, which has drawn a satisfactory full stop for itself. Samsung, which has more than 20 models in the market, is naturally unwilling. Half a month ago, it adjusted the price of its α5 to less than 2k, which made the competition in the low-end manual market more intense.

Alpha 5 is a relatively high-end product launched by Samsung last year. The price in the first half of 2005 was close to 3,000 yuan. Use11.8 inch 5.3 million pixel CCD as the photosensitive element, the effective pixel is 5 1 10,000, and the largest picture file can be photographed as 2592x 1944. Samsung α5 is equipped with Schneider 3x optical zoom lens. The equivalent focal length range is equivalent to 38- 1 14mm of the traditional 35mm camera. The maximum aperture is f2.7-f4.9 and the minimum aperture is f6.7-f 1 1. With 4cm macro function, the shutter speed is 2 seconds -65438+. The sensitivity range can be adjusted arbitrarily between automatic /ISO 50/ 100/200/400; In terms of moving image shooting function, Samsung Digitmax α 5 has the characteristics of high-end consumer digital camera, supports moving image shooting in MPEG-4 format, and shoots video with the maximum resolution of 640x480 at the speed of 30 frames. The storage medium supports MMC card, SD card, MS memory stick and MS Pro memory stick; The power supply can support 9 kinds of batteries, including AA batteries.

Price: Samsung digimax α 5: 1999 yuan.

Camera sample

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With the continuous price reduction of digital cameras, more and more people give up traditional fool cameras and join the ranks of digital cameras. This change is not only because the price of digital cameras has dropped to the psychological price that everyone can bear several times, but also because the advantages of digital cameras such as "you can get what you see" and "remake if you are not satisfied" have been recognized by consumers. When people buy digital cameras, it is inevitable that they will be confused about how to choose, so the author will discuss with you the problems that family users should pay attention to when buying digital cameras.

Home users only need to shoot with good quality, simple function and low price.

For these people, most don't want to spend too much money on digital cameras. The price of 2000-3000 yuan is their psychological price, which requires simple function and convenient operation. This is also the standard for ordinary home users to buy cameras. Compared with a year ago or even half a year ago, the same price can buy higher products than then, from which we can feel that the upgrading of digital products is quite rapid. With the 3 million digital cameras gradually fading out of the market, 4 million and 5 million pixel digital cameras have become the mainstream of the market, and the prices of 2000 and 3000 are also the main models of many big-name manufacturers such as Sony and Canon, which are not only easy to use, but also the image quality is recognized by many users.

Because of the rich functions of digital cameras, the ease of use in front of ordinary home users is very important. Among them, we can see that many domestic digital cameras have been humanized in key design, menu system and white balance adjustment. The functional design is intuitive and the operation is quite simple. Even some manual options are quite simple. You can understand them by reading the manual. If you still feel trouble, you can use the preset scenes such as portrait, automatic P file and night in the menu. These scenes have all the functions needed to shoot a specific environment, and users can finish shooting by pressing the shoot button. To put it simply, a digital camera at home is actually a traditional camera for fools, but it is more convenient than a traditional camera, allowing you to see the shooting effect immediately.

The most important thing is cost performance. In today's digital market, the cost-effective advantages of different brands of digital cameras are also mixed. Relatively speaking, Sony digital cameras in Japan are generally expensive, and Sony needs to match its original memory chips, and the price is even more impressive, which makes the whole purchase cost increase a lot compared with similar products, but Sony's brand value is really high, and buyers need to measure it here. And Olympus, Fuji, Canon and other companies have been pursuing the strategy of low price and high quality, and the cost-effective advantages of their products are obvious to all. In view of the lack of manufacturing level, although Korean digital cameras of European and American brands can also bring good shooting quality to ordinary users, there are more or less deficiencies in body design and key layout, so the cost performance is not obvious. However, the production design level of some new products recently listed has been greatly improved, and the cost performance has also improved a lot.

After-sales service is also a place to pay attention to. After all, digital cameras are expensive, and good after-sales service is psychological guarantee. A well-known brand generally has first-class products and first-class services, so try to buy products of well-known brands, pay attention to holding warranty cards and ask about after-sales service regulations, so as to avoid unnecessary troubles that may occur in the future.

Before the end of the article, the author talks about the relevant parameters that should be paid attention to.

1 CCD

If you ask what you will pay attention to first when buying a digital camera? I believe most people will say CCD pixels. As a key component of digital camera imaging, it affects the quality of photos taken and the manufacturing cost of the camera, so the value of CCD becomes an important standard to determine the grade of digital camera. The quality of photos is largely determined by CCD pixels. The more CCD pixels, the more accurate the captured image, so generally speaking, the higher the pixels, the better the imaging quality. At present, the CCD pixels of digital cameras are generally in tens of thousands, such as 4 million pixels and 5 million pixels, and 7 million pixels and 8 million pixels are higher, of course.

Generally speaking, the higher the pixel, the higher the cost. At present, the mainstream is 5 million pixels, but for ordinary families, 4 million pixels is enough. It is wise to choose according to your own needs.

2 shots

The lens can be said to be the eye of the camera, and it is the only path for external light to enter the camera for imaging, so the quality of the lens also affects the quality of imaging, which must be paid attention to when purchasing a camera. Three key points that determine the quality of a lens: transparency, distortion of light and zoom ability. The first two are difficult for ordinary people to judge, but I believe many people have heard of zoom ability, which is very important for you to shoot distant objects. The better the zoom ability, the farther you can shoot the object. The zoom ability mentioned here refers to optical zoom without losing image clarity. At present, the zoom is usually 3 times, and the high zoom is 12 times or even higher.

3 batteries

If you are playing outside, taking pictures and having fun, the battery of the camera is dead, which will be a disappointing thing, so the battery durability of the digital camera can not be ignored. In the camera, LCD screen and flash are the most power-consuming. The batteries used in digital cameras mainly include lithium batteries and general dry batteries. Lithium batteries are characterized by small size, high cost and low versatility, while dry batteries are characterized by low cost, high versatility and large volume. When you can buy a low-power camera, you should prepare a spare battery when you go out to take pictures.

Having said that, you should have a clear idea about the choice of home digital camera. Pay attention to the above problems, read the instructions and ask the sales staff, and then try it to see the effect. I believe it is not difficult to choose a digital camera that suits you.