Canon ET-1000N3 Remote Extension Cord for Canon EOS SLR Cameras Great for remote picture-taking situations Connects Canon EOS bodies with Timer Remote Controller TC-80N3 or Remote Switch RS-80N3 33-foot extension cord Durable, high-quality construction Compatible with EOS 5D, EOS 1D Mark II n, EOS 1D Mark II, EOS 20D, EOS 10D, 1D, D60, D30, D2000, 1v/1vHS, 3