Vello Auto Extension Tube Set for Canon EF/EF-S Mounts and Lenses V2

The Auto Extension Tube Set for Canon EF/EF-S Mounts and Lenses V2 from Vello consists of 12mm, 20mm, and 36mm tubes with durable metal lens mounts. The extension tubes reduce the minimum focusing distance on your lens and enable you to capture the fine details of an insect or the inside of a flower. Each tube can be used individually or together for greater magnification to capture close-up or macro images. When the tubes are used in tandem with the camera and lens, it maintains the autofocus of the lens and the autoexposure of the camera as well.