This is used in good condition, Sigma EX 100-300mm HSM APO DG, f4, Canon mount. Filter ring is 82”. This lens work on all Canon EOS body.  Aperture, auto focus and manual focus in good working condition. Zoom is smooth, and travel nice. Glass is clean and come from nonsmoking house. Glass is free of haze, mold, or fungus. Few marks are on the lens body. Also some cracks are in filter thread. UV filter can be attached. Autofocus work perfect, manual focus ring work but slight travel is uneven. Lens is sharp at all focal length, and is a true professional optics. Included is only front, and rear lens cap, plus UV filter Mercury Optics 82” filter. Use this on Canon 60D and 6D with good results. PayPal, and shipping only for USA and Canada.

See review: http://www.photozone.de/canon-eos/328-sigma-af-100-300mm-f4-ex-hsm-apo-lab-test-report--review