Kenko DG Auto Extension Tube Set for the Canon EOS AF Mount.

Features

• Enables a lens to focus closer than its normal set minimum focusing distance
• The DG extension tubes have no optics
• Contains three tubes of different length, a 12mm, 20mm, and 36mm
• Designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure
• Designed specifically for use with Canon digital SLR cameras and lenses

Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. The DG extension tubes have no optics. Contains three tubes of different length, a 12 mm, 20 mm, and 36 mm Designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with most Canon, Nikon, and Minolta lenses

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