Lens Sigma 10-20mm F3.5 for Canon. Is in perfect conditions and comes with case and box I bought it in. Is a great wide angle lens. I bought a new camera that it isn't compatible with other wise I would be keeping it.
Regular price is $800 (Kerrisdale Cameras for example)
http://kerrisdalecameras.com/spec_sheet.html?catalog[name]=Sigma-10-20mm-F3.5-EX-DC-HSM-for-Canon-Lenses---SLR-%26-Compact-System&catalog[product_guids][0]=480400