What are the guidelines for choosing SLR cameras?

Lead: A good camera should have two different characteristics at the same time. Want to just use the camera? People can easily operate shooting, let? Want to know more features? People can also be satisfied. Simple operation and professional operation of SLR cameras can be simply summarized as easy operation and difficult operation.

What are the guidelines for choosing SLR cameras? Selection guide:

1. What is the budget for the most important question?

Actually, you can buy anything. Faced with many choices, which one is the most important? Budget? problem What kind of products can be positioned according to the budget. Let's see what kind of budget corresponds to what kind of plan. This is just a reference. The development of electronic products is changing rapidly. I suggest buying it specially to see the market at that time.

2. Determine the investment ratio of the fuselage and lens.

After setting your own budget, if you want to buy the fuselage lens separately, you should share the proportion of the fuselage and lens respectively. Generally, users who buy digital SLR for the first time will feel that they should invest more in the fuselage, but this idea is not quite correct. Because a good lens can improve the image quality better than a good camera body, and another good lens can still work for you after your camera body is replaced, Tao Ge suggested increasing the investment ratio of the lens when purchasing.

Step 3 choose a brand

Many friends have used some brands of digital cameras themselves, thinking that the brands they are used to will be better. Although this idea can narrow your choice a lot, it may also miss the excellent models of other brands. Remember, what suits you best is the best! When choosing, you should abandon brand preference, accept other brands and choose the car that suits you best.

4. Choose the lens according to the subject.

The type of subject matter largely determines the type of lens needed. For example, if you want to shoot scenery, you must choose a super wide-angle zoom lens; If you want to shoot a macro still life, choose a macro lens; If you want to take a portrait of a beautiful woman, you should choose a medium telephoto lens with a large aperture. But most users who buy digital SLR for the first time don't know their main theme, or want to try to shoot any type. At this time, they need to choose a standard wide-angle zoom lens with high versatility.

If the requirements for image quality are not very high, or the budget is insufficient, you can buy a camera directly, and the camera lens can already meet the requirements of most photographers. If you have certain high requirements for image quality and have enough budget, you can choose a standard wide-angle zoom lens with large aperture. These lenses can not only expand your photographic flexibility, but also greatly improve the imaging quality compared with the lens set.

5. Features and functions

Does the SLR camera have anti-shake, live view, dust removal, etc!

6. What is the operability of the SLR camera?

Is the position, function design and menu design of each button of the camera reasonable? Is it more humane and convenient? Is it more in line with the needs of photographers? This is a very important aspect of the camera.

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1. After opening the package, first check whether there is a warranty certificate in Chinese in the box. If there is no warranty certificate, it is parallel imports. Parallel imports are not guaranteed by manufacturers nationwide, only the so-called? Store guarantee? . Of course, the prices of parallel imports and licensed products are different. It often happens that parallel imports are obtained at the price of purchasing licensed goods. If you find that there is no warranty card, please ask the store to replace the licensed goods on the spot.

2. The serial number of the machine is on the warranty card. Take out the product and check the serial number on the fuselage to see if it is consistent with the serial number on the warranty card. If the machine number is also posted on the box (it will be on Canon's box), the numbers in the three places should be the same.

3. Next, check the fuselage for dirt or scratches to prevent second-hand machines from passing off as new goods. There are three places worth checking, one is the viewfinder eyepiece, because the used camera is very easy to leave dust at the viewfinder eyepiece; One is the lens bayonet, which is not used or rarely used on the lens, and should be clean and scratch-free; The other part is the electrode part of the lithium battery. If it is badly worn, it can be determined that the packaging was replaced by an old battery. Factories or businesses may leave only the slightest trace during inspection.

4. After confirming that the camera and battery are new products, check whether all the accessories in the package are complete according to the instructions. Most instructions will provide a packing list, or it may be a separate document outside the instructions. Check whether the packaging of these accessories is complete (each accessory will be packaged and will not be exposed), and if the packaging is sealed, check whether it has been opened.

5. When all the above checks pass smoothly, you can install the battery for trial operation. The first check after startup is to check whether the date and time of the machine is a strange time like 1980 65438+ 10/012: 00. It is usually necessary to set the time when the new machine is started for the first time. If the screen prompts to set the time, it must be a new machine, but it does not rule out that some models have been set when they leave the factory. Then insert an empty memory card to shoot, and play back immediately to see if the photo number starts from 000 1. If the number does not start with 1, you can be sure that someone has used it.

6. Next, check the LCD screen of the LCD viewfinder for any bad points. The way to check the bad spots of LCD is all-white and all-black photo test? Aim the machine at the white paper to shoot a full white picture, then cover the lens to shoot a full black picture, and play back the above picture to see if there are any bad spots on the LCD screen that are different from the surrounding colors. If it is found that every photo will appear in the same position on the LCD screen even after enlargement, it can be determined that there are bad spots on the LCD screen.

7. The next thing to do is to check whether the photoreceptor has damaged pixels (this step is often ignored because the LCD can't see the bad pixels, but the bad pixels of the photoreceptor are worse than those of the LCD because they will be seen in the photos). The method of checking all-white and all-black LCD is still used, but it is necessary to take pictures at different exposure speeds, such as high speed, fast speed, slow speed and extremely slow speed, because the defects of pixel units of the photoreceptor sometimes appear in a certain speed range. After shooting, you can enlarge the image playback, use the arrow keys to move the photo up and down, left and right, and carefully observe whether there are dark spots on the white photo, bright spots on the black photo, or dots of other colors (if all three RGB channels of a pixel unit are not damaged, the bad spots are colored). A more scientific inspection method than the naked eye is to test with the bad spot detection software. For example, the bad spot testing tool is a relatively easy-to-use bad spot detection tool software, which can be used to check whether the photoreceptor has bad spots and how much noise there is (no matter how much noise there is, the number of bad spots must be zero). This software is very small, only a few hundred k after decompression, and it doesn't need to be installed, so it can be run directly. It is recommended to use flash memory to carry with you, and it is required to use the computer in the store for testing. If the store doesn't provide computer testing, bring a laptop if you can. Of course, it is ok to go back for testing, but it is hard to say whether the store will replace it once it finds something bad.

8. If there are no problems in the above inspections, you can try other functions of the camera, take some scenes to see how the machine performs, and mainly check whether the autofocus is accurate (that is, whether the lens is out of focus). The method is to shoot with a large aperture, remember what your focus is, and check whether the focus is clear when playing back. If you don't know, try shooting several times. Of course, the premise is that the shutter speed should be fast enough, and the paste should not be regarded as defocusing.

9. Make sure there is no problem with the above inspection before you can pay for the purchase. Ask the store to issue an invoice or receipt, because some brands need to provide proof of purchase to confirm the date of purchase in addition to the warranty card.

Two: How to choose the right SLR?

1, define your own needs first.

Are there any higher requirements for snapshots or sports?

Yes: High-end SLR is recommended. None: It is recommended to get started with SLR. The focusing system and shutter lag of the mid-range SLR are better than those of the entry SLR, and the performance of the snapshot and continuous shooting is stronger.

Do you often develop large-format photos (such as 12 inch or more)?

Yes: It is recommended to consider high pixel SLR. None: Don't worry too much about high pixels. High-pixel SLR has more clipping space when developing large-format photos of 12 inch or larger.

Do you need to use it in harsh environment? Yes: It is recommended to choose a metal fuselage, or at least a metal skeleton. No: the fuselage material can be ignored. If you plan to take your camera to the battlefield or fight against sandstorms, the metal body is more reliable. It doesn't matter if the city uses it.

Just to take pictures of family and travel, or are you going to take photography as a hobby?

Yes, it is recommended to use Volkswagen brand cameras, such as Canon and Nikon. The original factory and deputy factory are rich in lenses and accessories, with a large market share. No: Some niche brands, such as Pentax, have good machine performance and often higher cost performance.

2. Choose the model of machine and lens according to your own needs. If you are a novice, you might as well start using condoms. The focal length of the sleeve is 18-55mm, which is about 28-80mm (the conversion rate of different brands is slightly different), and it also covers common focal lengths such as wide angle, standard and portrait. The optical quality is passable, the working materials are average, and the hands are trained enough. If you use it well, you can also take wonderful photos. And the price is not expensive, and upgrading the lens in the future will not cause too much waste.

3. Check the quotation online, and be conscious.

4. Choose a store with a good local reputation. If the price is not far from the online quotation, 3C stores such as Suning and Gome are more reassuring, at least they can be guaranteed to be licensed.

5. Inspection machine. The serial numbers on the fuselage, warranty card and package are required to be consistent. There is no trace of unpacking and use of the package and accessories. Shoot and check whether there are any bad spots on the camera screen and photoreceptor. Take two photos of white paper and see if there are any bad places. Cover the lens and expose a few photos for a long time to see if there are bright spots in the fixed position. If there are only 1 and 2 bad points, there is no need to be too entangled. It is inevitable that normal use will not be affected. If there are many bad places or near the center, I don't like asking for changes on the spot. Finally, let the dealer fill in the warranty card and ask for the invoice.

6. Finally, you can choose some small accessories, such as screen film (ordinary film can be used), memory card (level 6 or higher card is recommended), camera bag and so on. Dealer delivery is of course the best.