Metal Mount TTL Auto Focus AF Macro Extension Tube/Ring for Canon

Product Description

ElectronicMetal Mount TTL Auto Focus AF Macro Extension Tube/Ring forCanon
Description:
The Commlite Metal AF Extension Tube Set can perfectly transform your Lens into a Macro Lens for great Macro shooting. It drives the lens by film or digital sensor and does not affect aperture and image quality. Meanwhile, it is combined with 3 pieces of different tubes (length: *3mm, *1mm, *1mm) which can either be used separately or in any combinations(totally 7 different combinations) to satisfy your different magnification requirement. Furthermore, the tube is electronic one that can achieve functions of Auto-focus as well as TTL auto exposure by working with all EF and EF-S mount Canon lens.     Compatibility:
  All EF and EF-S Canon lenses Features: 
  1.Support accurate TTL & Autofocus;2.Built-in electric pins;3.Compatible with all EF and EF-S Canon lens
  4.Combined of 3 tubes with different length of: *3mm, *1mm, *1mm;
  5.Made of brass and Aluminum (not plastic) that is more strong;