1:1 Macro for extreme close up photography</br>Fast f:2.0 Aperture</br>Two LD Glass elements</br>Internal focusing design</br></br>Product Description</br></br>For Use With Canon EOS D-SLR Cameras 1:1 Macro Fast f/2.0 Lens Designed for APC-Sized Imagers</br><br/>http://www.amazon.com/gp/product/B002AAYYIW