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The 21mm Pro Auto Macro Extension Tube from Fotodiox is suitable for use with Canon EOS EF & EF-S Lenses for extreme close-up. It is an automatic tube that is able to communicate all electronic functions from the lens to camera including autofocus and auto-exposure. No other optical components are added, so the image will preserve the original optical properties of the lens.
The lens transforms into a macro lens while maintaining its optical quality. By placing distance between your camera body and lens, focusing distance is shortened and the effect of magnifying your subject is created.
Any combination of tubes can be used for various reproduction ratios
No optical insert - maintains lens optical quality
Maintains the electronic functions of the lens, including auto-focus and auto-exposure
Matte black color
In the Box
FotodioX Pro Auto Macro Extension Tube for Canon EF & EF-S Lenses (21mm)