Macro Extension Tube Lens Ring for Canon D800 D3100 D5000 D7000 D70 D50 D60 D100 Macro Extension Tube moves the lens farther from the film or digital sensor. The farther away the lens is, the closer the focus, the greater the magnification.This extension tube does not affect image quality as there is no optics inside. In comparison, close-up filters are often blamed for degrading image quality. Canon:1100D,1000D,650D,600D,550D,500D,450D,400D,350D,300D,300V,300,60D,70D,60Da,50E,50,33,30,300 50E,50, 33,30,7D, 6D,50D,20D, 10D, 5D MarkIII, 5D Mark II, 1D X, 1D C, 1D mark III,3000 This extension tube is consists of 5 parts: 1. Camera Body Mount Adapter 2. Lens Mount Adapter 3. 9mm tube (Tube 1) 4. 16mm tube (Tube 2) 5. 30mm tube (Tube 3) Fits for all Canon DSLR & Film DSLR and Lens.