Is the second hand SLR reliable, what should I pay attention to when buying a second hand SLR?

It's not that second-hand people love bad, so many people buy it, but second-hand still have to find professional people to see, such as bad pixels, black screens, aging and other hardware detection. It is best to get the newer the better, otherwise the aging is serious, and the hardware can't keep up, for example, D200 is not as high as D90. There is also the fact that it is not recommended to buy second-hand online, in that case, you don't know whether it is good or bad, like gambling, and it is not easy to find if it is broken...

About what you can buy in 7000, go to the second-hand area of Hummingbird to see, click on the homepage to trade, and then make a filter, you can see for yourself, the approximate market is like this, and then the knife is the price of the machine.

It is recommended to get started with a new set, and then choose a second-hand lens when you are familiar with it.

Unless you have some knowledge of DSLR, there are risks. Even if you understand, some hidden problems cannot be discovered by a short period of trial.

If there is a master to help test the machine, you can choose to trade in person.

Since there are professional teachers, there should be certain requirements, and it is not recommended to enter the machine, it is best to be able to go to full width, but 7000 will definitely not be able to take it.

For a budget of 7000, it is recommended to use a second-hand phone for C, 50d for N, and a lens for a sleeve (18-135 or 18-105) plus 50 f1,8

The body shutter should preferably be below 1W. Otherwise, it's really possible to love badly.

The new machine is recommended to add some money to the D7000 set of N. Now the first choice in the mid-range is much stronger than the 60D performance of the C, although the 60D is more suitable for the budget of the landlord, but the 60D is not worth it more expensive than the 50.

It's best not to buy second-hand SLR, after all, it's a precision optical instrument, don't buy it online if you want to buy it, it's best to buy it from an acquaintance.

It is also very important to inspect the machine after buying!! If you have any questions about the inspection machine, you can hi me directly!!

7000 buy second-hand can not buy the mid-range upper, because it is only enough to buy a good second-hand body, such as Canon old 5d second-hand 7500 or so, look at the color, but this is only a fuselage, but also with a head, 7000 If you want to take it calmly, just the mid-range old model, such as Canon 50d + 18-135 basically second-hand like 7000, but basically you can't buy 50d second-hand, just like Nikon D90 second-hand, very little, in fact, if you just play by yourself, Just buy Canon (or Nikon (d80, d90), if you are a player with little silver, I recommend Pentax's second-hand machine, K10D, K20D, K200D can be, and then you can buy some manual old Zeiss lenses, about a thousand or so, so that you can play out of the realm, such as a 1000 yuan East Zeiss 135 can kill Canon's 85 more than 10,000 heads), Canon and Nikon can't use the old Zeiss head, unless you change your mouth, you don't support automatic metering, Pentax is more kind, never advertises, And those who use Pentax are masters, I hope you start according to your own conditions, the above is a suggestion.

The airframe involves a shutter life issue. If you look at the appearance, you can roughly know the color. But some lenses, especially Canon's, will be out of focus, of course, this has something to do with the body. It's best to find a professional friend to try it.

It can be purchased on the go. The most reliable is the brand's official second-hand trading platform or officially authorized second-hand goods store, which is generally a new product or official translation, and can enjoy joint warranty services.

Now the entry-level camera is not expensive, and the performance is already comparable to that of a professional, although it is an entry-level one, such as 550D, and it does not need a very good lens, so practice first. Don't look at the high and low, then it will be a waste.

Zhuan Zhuan is a second-hand idle trading platform APP client (iOS version and Android version) developed by Beijing Zhuan Zhuan Spiritual Technology Co., Ltd., users can quickly transfer idle items at home by logging in with one click through WeChat.

In Zhuanzhuan, each item supports a guaranteed transaction, and individual buyers can inspect the goods before paying; In the turn, individual sellers can get a greater degree of ** volume, and the renunciation has never become so good.

At the end of 2015, it was transferred to the Internet, and its business covered more than 30 trading categories such as mobile phones, 3C digital, books, clothing, shoes and hats, maternal and child products, furniture and household appliances. In May 2020, Zhuan Zhuan merged with the second-hand mobile phone B2C platform Zhaoliangji, which was also launched at the end of 2015. After the merger, the new Zhuan Zhuan Group includes three major platforms: Zhuan Zhuan, Zhaoliangji and Cargo Picker.

On April 2, 2021, Zhuan Zhuan Group announced that it had received a total investment of 100 million US dollars from the GBA Greater Bay Area** and Qingyue** before the Spring Festival. This is the first financing obtained since the strategic merger of Zhuan Zhuan and Zhaoliangji in May 2020 to form a new Zhuan Zhuan Group.

According to industry reports released by a number of third-party institutions such as Aurora Big Data, in the second-hand mobile phone 3C market, Zhuan Zhuan Group has been in the leading position in the second-hand mobile phone user trading, B2C and second-hand ** markets.

1. All upstairs is too detailed. But it's a bit lacking in feasibility. If you have that many devices, you don't seem to be a novice.

If you want to buy a second-hand SLR, first look at the shutter times. If the entry-level SLR is less than 5k times, it is not a big problem. To mid-range SLR, generally within 1w times.

It's relatively new. Judging the newness of a DSLR based on the number of shutter speeds is a basis. SLR shutters have a lifespan, but replacing a single shutter is not very expensive.

Then pay attention to the dust in the grooves of the SLR camera, if you have carefully maintained the camera, there will be very little dust here, if you are very careless, there may be a lack of maintenance, and it is possible that you have used it in harsh conditions, where there are generally clean dead corners. You can also get an idea of how useful this camera used to be.

There is a function in the camera, which is to "lift the reflector to clean the influencer", after selecting, press the shutter, the reflector will be lifted, and then take the lens down, you can clearly see the image sensor inside, that is, CCD or CMOS. Mainly look at whether there is dust and scratches inside. If there is dust or scratches, it is recommended that it is not good to buy.

The dust stains on the sensor are very difficult to remove, and you can't get them yourself, and the image sensor will be scrapped if you are not careful. If you have scratches, you can't ask for them. Unless you're already planning to go to customer service and get a new one.

After taking the lens down, face the lens, pull down the lever of the aperture to open the aperture widely, and see the transparency of the lens lens, whether there is gray or scratches, and whether the aperture can be retracted freely. Look at the contacts for signs of rust and for severe contact wear. Severe wear indicates that the lens is replaced frequently, and there is a greater possibility of ash.

Then turn the zoom ring, then shake it, and listen for any abnormal noises inside. Then, after attaching the lens, use the camera's "continuous servo" focus mode to press and hold the shutter halfway to see if each focal length is autofocused.

When the machine is turned on, press the various keys to see if there are any keys that are not easy to use. Turn the dial to see if the dial feels strange and uneven.

Look at the exterior again to see if there are scratches, fall marks, and judge from all sides.

Then you ask the person why he made the move. It's good to ask more.

1: First of all, check whether the lens of the lens is scratched or mildew, and rotate the focusing knob by hand to see if it is smooth, blocked, and loose. If it is a zoom head, rotate it to check the zoom knob as well.

The quality of the image depends entirely on the quality of the lens. In the case of electric focusing, the inspection method is the same, and in addition, it is necessary to check whether the minimum focal length of the lens is clear within this distance, and to check whether the value of the aperture matches the actual aperture size. whether the opening and closing of the aperture is smooth, etc.

The speed of focusing is also considered!

2: Program metering **Is it accurate It will be more accurate to compare on the spot with a light meter (this is for metering).

**The time is detected manually, and there is a clear difference between the length of the shutter and the sound when observing the shutter below 125 fractions, and it is difficult to distinguish between the naked eye and the sound above 125 fractions of a second.

3: Whether the flash is synchronized, if it is not synchronized, it will cause the part of the captured picture to be insensitive or completely insensitive (the number of parts depends on the degree of asynchrony) Now the general camera will be synchronized below 125 minutes and one second.

4: It is estimated that you are buying digital (but there are still people who like film) The quality of imaging is mainly in the lens, followed by the imaging photosensitive lens chip, with the maximum resolution and highest precision mode after shooting, zoom in in the photo to check whether there are dead pixels, if there is, it will leave dead spots in a fixed picture position (that is, there is no image and color) It is recommended to shoot monochrome to check, such as pure red, pure blue, pure green, etc. No bad pixels are good.

Good luck with your camera!

It is recommended not to buy second-hand ones, because many times dozens of minutes of inspection can not detect any problems.

It's not that novices are afraid to buy second-hand.