Tell me, which is more important, the lens or the camera? Is it better to use a good lens for imaging? If the camera is good, what is the general effect of the lens? Thank you?

Generally speaking, the lens is very important. There are hundreds of thousands of good lenses, but the price of the fuselage will not be too bad. There is a "good horse with a good saddle". A good entry-level SLR Quan Huafu lens does not reflect the value of a good lens. The key is to look at your photography skills and needs. A master photographer can shoot large films even with an entry-level SLR, and some pictures must also be well used with cameras and lenses.