Kenko Automatic Extension Tube Set for Nikon

Kenko Automatic Extension Tube Set for Nikon contains three tubes of different length - 12mm, 20mm, and 36mm - which can be used individually or in any combination. The Extension tubes is designed to enable a lens to focus closer than its normal set minimum focusing distance.It is exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens.

• It is designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure.
• It can convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.
• It can be used individually or in any combination to obtain the desired magnification.

It is mounted in between the camera body and lens to create more distance between the lens and film plane. By moving the lens farther away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus. Actual magnification effect changes with each specific lens.