What if the camera lens can't stretch?

The zoom gear in the lens is misplaced or stuck by a foreign object.

The lens motor drives the flat cable to loosen or fall off, or the electronic part fails. First, observe whether the camera moves slightly or does not move at all when it is turned on and off.

Solution:

If you move a little, it's the reason 1, otherwise it's 2. If it is 2, it is very simple, indicating that the telescopic lens is dropped or squeezed in the extended state, resulting in the dislocation of the lens ring. It shows that it cannot be fully retracted or fully extended, and leans to one side. After starting, the indicator lights up and gives three warning sounds, and then goes out. If you have experience in repairing microelectronic products, you can try to disassemble the lens group. Move to the mirror ring step by step, observe carefully, and reset the mirror ring again. Special attention should be paid to those small flat cables during disassembly, which will break if you are not careful, which will aggravate the fault. During the disassembly process, there are also contacts between the power supply and the flash booster circuit. If these places are accidentally short-circuited, it will be safe to burn, otherwise the camera motherboard will be scrapped. Whether it is 1 is hard to say! It is necessary to disassemble and carefully check the fault, and then carry out maintenance after confirming that the fault is in the specified place.

Camera lens is the most important part of the camera, because its quality directly affects the quality of shooting and imaging. At the same time, the lens is also one of the most important criteria to classify the camera type and grade. Generally speaking, cameras can be divided into professional cameras, quasi-professional cameras and ordinary cameras according to their lenses, and both traditional film cameras and digital cameras can be applied to this division. Lens can be divided into zoom and fixed focus.

The lens of a quasi-professional camera cannot be replaced, but it can be replaced by adding other lenses or lenses. Although its shooting effect is slightly inferior to that of professional cameras, its price is its advantage. Because the price of a quasi-professional camera plus a relatively complete set of additional lenses and lenses is roughly 10000 yuan, which is basically equivalent to the price of an entry-level professional SLR camera body. Therefore, quasi-professional cameras are most suitable for individual high-end users with certain photographic skills.