What do you mean by the camera and lens settings in SLR cameras?

Kit means that the fuselage and lens are sold together. For novices, many people don't know how to choose the right lens, so sellers will launch entry-level lenses and complete sets of fuselage for sale.

The body and lens of a SLR camera are sold separately. A stand-alone camera has only the camera itself and no additional lens. Generally choose the right lens according to your own needs. For novices, they generally don't know how to choose the right lens, so the seller will launch an entry-level lens and a whole set of fuselage for sale.

The lens attached to the machine is generally only in the wide-angle to medium-focus range, such as 18- 105mm focal length.

Extended data:

Compared with paraxial cameras, SLR cameras have the advantage that what you see is what you get, and the imaging angle in the viewfinder is the same as the final film.

However, compared with paraxial camera, the back focus of SLR camera lens should be able to image at the focal plane of reflector and photosensitive element at the same time, and false focus must be generated before imaging at the focal plane, which makes the structure of SLR camera optical lens more complicated and larger, and the imaging effect is not as direct and transparent as paraxial camera. At the same time, the volume of the "reflector" should be large.