Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance The extension tubes have no optics and can be used individually or in any combination to obtain the desired magnification Contains three tubes of different length, a 13mm, 21mm and 31mm Designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure 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 2 year limited warranty Canon Lens Compatibility Notes:
Canon EF-S lenses will not mount on the Extension Tube Set. These lenses include but not limited to EF-S 10-22, EF-S 17-85, EF-S 18-55, and EF-S 60mm Macro.
