Canon Mount, for all Canon SLR & DSLR
It 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, a close up filters are often blamed for degrading image quality.
Made of metal (not plastic);
color : black
1 x Macro Extension Tube Set for Canon
1 x Original Box
This extension tube consists of 5 parts:
Camera Body Mount Adapter
Lens Mount Adapter
9mm tube (Tube 1)
16mm tube (Tube 2)
30mm tube (Tube 3)
The more tubes you add, the closer the focus and the greater the magnification.
There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually.
Aperture control is not available if you use a lens which does not allow you to manually
adjust the aperture (without an aperture ring).