Manufacture Best Price ET-C Camera Auto Focus Macro Extension Tube for Canon

Specificaton:

1.  Compatiable with Canon EF camera                                                                

2.it Transform your Lens into a Macro Lens,the more The closer the focus is, the greater the magnification                                                                                    

3.it couple perfectly with camera automatic diaphragm.With cameras of TTL, AE(Through-the-lens,Atuomatic Exposure) type it gives perfect coupling except when combined with electronic flash AE unit                                                          

4.Lens Mount Adapter  have three tube with different length,which can be used individually or in any combination to obtain the desired magnification,Make it useable with 7 different length 

Features:

length of tubes1 : 12mm tube 

length of tube 2:20mm tube 

 length of tube:36mm tube                    

 combined length: 12mm + 20mm Tube                   

 20mm + 36mm Tube                   

12mm + 36mm Tube                          

12mm + 20mm + 36mm Tube                  

Diameter of tubes:About 62mm