Sigma 15mm f/2.8 EX DG Diagonal Fisheye Autofocus Lens for Canon EOS. Excellent condition and hardly used. Includes a pouch.
https://www.vistek.ca/store/CameraLenses/237536/sigma-af-15mm-f28-ex-dg-fisheye-lens-for-canon.aspx
Please ask for Lucien. Asking $495 (firm).