Regarding photography, especially cameras, I want to know what kinds of lenses it has.

Camera lenses mainly refer to SLR cameras and mirrorless cameras with interchangeable lenses, and there are several categories.

Original lens and sub-factory lens: the same brand lens produced by camera factory is called original lens, and non-original lens is sub-factory lens.

According to the focal length, it is a standard lens with an equivalent Quan Huafu of about 50mm, a wide-angle lens with a larger viewing angle and a telephoto lens with a smaller viewing angle.

According to whether the focal length is variable, it can be divided into fixed-focus lens and zoom lens.

According to automatic mode, it can be divided into automatic lens and manual lens. Auto lens motor is different, whether it is always manual. Nikon and other models also have lenses without a focus motor.

Others include aperture size, the number and shape of aperture blades, whether there is an electromagnetic aperture, how many special lenses are used, internal zoom or external zoom and so on.

One of the most basic and simple is the focal length, which is also a misunderstanding of many novices. I don't know where the lens with the same focal length is different.