KK-C68A 

AF Extension tube set for Canon (12mm,20mm,36mm)

Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). 

Auto focus compatible with all Canon DSLR Cameras and Canon EF and EF-S Lenses

They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.

This Autofocus Extension Tube Set (12/20/36mm) for Canon from KOOKA contains three tubes of different length, a 12 mm, 20 mm, and 36 mm, which can be used individually or in any combination to obtain the desired magnification.(An individual 25mm autofocus extension tube is available).

•  
• For close-up photography.
• 3 tubes to vary magnification.
• For use with Canon EF & EF-S SLR cameras.
• Use individually or in Combination.
• Aluminium construction.
• Lens mount index
• Front and rear caps prevent the dust.

What is Extension Tube? 

Using an extension tube to turn an ordinary lens into a macro lens

• Ordinary lenses can normally focus to infinity, but when you pair a lens and an extension tube, the maximum focusing distance becomes limited. The extension tube enables you to get in closer to a subject but also limits how far a subject can be from the lens.

 

 

Sample pictures: