Before purchase
Before buying a ccd camera, be sure to ask the seller if there is any problem with the camera and whether there is a 48-hour inspection time. This is the most basic. If you see something that says no refund or exchange after signing, don't touch it, even if it's cheaper. It's probably a big pit.
And no matter what the seller says, we must take a credible platform, such as idle fish, transfer and other second-hand trading websites.
After purchase
The first step after buying is definitely to check the machine, but many white people may be confused about what needs to be checked. Personally summed up the following points must pay attention to. Can be used as a reference.
1.？ Is the switch on and off normally?
When the machine is available, the switch of the machine must be checked. If it doesn't even work, it must be broken. It must be returned at once at this time.
2.？ What's wrong with the lens?
Lens is the most important part of ccd camera. We can use strong light to see if the lens has stains or dust, or even if the coating has fallen off. If so, it is necessary to check in time whether it will affect the operation. We also need to check whether the hinges of some lenses with self-protection function can be opened and closed smoothly. If there is a paper jam, we can return it.
3.？ Is there anything wrong with CCD?
This is also a very important checkpoint, because ccd is very old, so many CCD will have some bad points on it. If it does not affect the use, if it is acceptable, you can bargain with the boss. If it is really unacceptable, we must resolutely refuse to receive the goods.
4.？ Is the screen intact?
Screen aging and color cast are the most common problems of ccd cameras, but they are all acceptable. But if there are patterns and dark spots, there is no choice.
5.？ Is the battery compartment rusty?
The rust of battery compartment is generally caused by problems such as battery leakage and bulging. Even if the battery is replaced, the power is often cut off or the machine cannot be started directly.
6.？ Is the flash damaged?
Flash memory maintenance is difficult and expensive. Although the use of flash is not very great, we must pay attention to it.
7.？ Is the memory card slot damaged?
The most troublesome thing about taking pictures is that I took a lot of pictures and found that the card slot was broken. This is the most common problem I encounter, because the memory card of ccd is often unplugged, and it is likely to be damaged. If it is damaged, it can be said that the whole ccd is scrapped.
As long as you get it, carefully examine each of the above questions. We wouldn't have bought the broken ccd. If you find anything wrong with what I said above, don't think about it. Returning the goods immediately is the most correct choice.