Fotodiox macro bellows for Canon EOS Cameras, Fits Canon EOS 1d, 1ds, Mark II, III, IV 5D, 5D Mark II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel xt, xti, xs, xsi, t1i, t2i, 300D, 350D, 400D, 450D, 500D, 550D, 1000D Best for extreme Macro photography, with MAX magnify ratio up to 8:1 (3:1 with 50mm Lens) Bellows extend from 40mm to 150mm with locking thumb screw. All metal construction Built-in tripod socket for seamless sticking Includes a 24 month manufacturer warranty