Canon Sigma EF-s 10mm f2.8 EX DC Fisheye HSM Lens -Very Clean-
This is a really solid fisheye for EF-s (not full frame). It is sharp and has excellent image quality.
The lens is in very clean condition with hardly any wear. The glass is clean and scratch-free with no haze, scratches or fungus.
It comes with the unusual lens caps in the case.