FOTGA Lens Bellows and 4-ways Macro Focusing Slide Rail for Canon EOS 60D 10D 20D 30D 40D 50D 5D/5D Mark II 1D 1Ds Mark II III 1000D 1100D 650D 600D 550D 500D 450D 400D 350D 300D DSLR SLR Camera This combination consists of two parts: the 4-ways Macro Focusing Slide Rail and the Lens Bellows for Canon.They can be used together, can also be used separately The 4-ways Macro Focusing Slide Rail can be adjusted in four directions: forward, backward, left and right. It can adjust the camera distance easily (as macro photography in a very short depth of field, the focus can be precisely) This macro bellow for Canon traditional film and digital SLR cameras provides you hi quality close up photograph. It has the bellow is an accordion-type section which is inserted between the lens and the camera body. Note: when the bellows are in use auto focus and aperture control are not retained Positive locking knobs assure rock-steady focus