The -up ring of the mount can turn a normal lens into a macro lens. A set of -up ring is composed of 5 parts, body bayonet ring, -up ring, No. 2 -up ring, No. 3 -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.-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 the barrel, the greater the magnification effect.The -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 -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 asked about the difference between the -up lens and the -up adapter. The main difference between is the -up lens is the principle of a magnifying glass.It is more practical and convenient to install directly before the lens; while the -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 to the object to be photographed.Generally, it is used for local macro of photos, and the macro effect is better an of -up lenses. When using a lens with a -up ring and no manual aperture, the aperture defaults to the smallest. There are certain skills in , and there are also some requirements for the level of photography, but at such a cheap , 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 who like to do their own work and love photography to study and .Material: Metalcolour: blackPackage Contents:1 x -up adapter macro RingOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.