Introduction: This is a quality Phootlex Auto Focus Extension Tube set which includes 3 tubes of differnet lenghts 13mm, 21mm, and 31 mm - which can be used individually or in any combination to obtain the desired magnification. These extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with Canon lenses, given there is enough light to activate the cameras AF system properly. Auto-Focus This extension tube 13mm tube (Tube 1) 21mm tube (Tube 2) 31mm tube (Tube 3)

• Cameras Lenses & Filters Metal Mount Auto Focus AF Macro Extension Tube/Ring f Kenko CANON EF-S Lens Red#0055/6

Cameras Lenses & Filters Metal Mount Auto Focus AF Macro Extension Tube/Ring f Kenko CANON EF-S Lens Red#0055/6Camera