The Auto Extension Tube Set for Canon EF/EF-S Mounts and Lenses 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.
 
- The extension tube set is compatible with Canon EF/EF-S camera mounts and lenses.
- Each tube can be used individually or together for greater magnification.
- 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.
- The lightweight design of tubes and the durable metal mounts are able to take the day-to-day use that professional photographers put on their equipment.