Extension tube for CANON

Extension Tube Set for Canon: 1.The cavity made up of a group of black tubular annex has mount adapter on both ends. It can be connected between camera body and lens, through changing physical displacement to change image field, and its working principle is same to bellows extension. The longer the extension ring, the closer the focus; vice versa. 2.The whole set includes one Camera body Mount Adapter, one Lens Mount Adapter and three tubes. These three tubes work independently or in combination, up to 7 different combinations available. Through this extension ring, the macro shooting may come true easily, and an ordinary lens becomes a macro lens.