The Promaster Automatic Extension Tube Set for Canon EOS is designed for close-up and macro photography. This 3-piece set includes 12mm, 20mm, and 36mm extension tubes that fit between your Canon EOS camera body and lens to allow closer focusing distances without sacrificing image quality.

Electronic contacts maintain full autofocus and exposure control, making this an ideal solution for photographers looking to explore macro photography without investing in a dedicated macro lens.