The close-up ring of the mount can turn a normal lens into a macro lens. A set of close-up ring is composed of 5 parts, body bayonet ring, close-up ring, No. 2 close-up ring, No. 3 close-up ring, lens bayonet ring. There is nothing to explain about the body bayonet adapter ring and the lens bayonet adapter ring. When installing, one end is connected to the body and the other end is connected to the lens.Close-up circles 1, 2, and 3 can also be used alone or in combination. They can be used alone or in different combinations to change the length of the barrel. The longer the barrel, the greater the magnification effect.The close-up adapter can be used for remakes. It is divided into 1.2.3. Three adapters. The adapter is placed between the SLR body and the lens, and can be combined arbitrarily to obtain the required magnification. For example: the length of the lens is 50MM, and the focusing distance is - the scene within 0.6mm and 0.6m cannot be photographedThe close-up ring is installed between the lens and the body (the lens is directly installed, not the reverse ring), the lens barrel is lengthened, and the principle of skin cavity photography is used to achieve the effect of super macro. Many friends asked about the difference between the close-up lens and the close-up adapter. The main difference between them is that the close-up lens is the principle of a magnifying glass.It is more practical and convenient to install directly before the lens; while the close-up adapter is installed on the lens. Between the camera and the SLR body, it is necessary to manually set the camera and focus manually throughout the whole process. When taking pictures, the lens should be very close to the object to be photographed.Generally, it is used for local macro use of photos, and the macro effect is better an that of close-up lenses. When using a lens with a close-up ring and no manual aperture, the aperture defaults to the smallest. There are certain skills in use, and there are also some requirements for the level of photography, but at such a cheap price, why not play with ultra--photography? Compared with the professional red circle macro head, which is nearly 10,000 yuan, this small accessory is really good. is very good value. It is suitable for friends who like to do their own work and love photography to study and use.Material: Metalcolour: blackPackage Contents:1 x close-up adapter macro RingOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.