Does the repeated disassembly of SLR lens have a great influence?

The damage to the lens and the fuselage is hard to say if the lens is frequently loaded and unloaded and replaced. Since the SLR has been manufactured, it provides the function of "changing the lens", which is to let you change the lens. However, there should be some influences, such as the wear of bayonet and contact, the influence of dust on CMOS and so on.

Therefore, when changing the lens, we should pay attention to: be careful of soft operation; Remove the lens body, and the upward time of the lens seat hole is as short as possible to prevent dust from entering; Avoid changing lenses in dusty places; Pay attention to keep the contact surface between lens and fuselage clean.