Pentax: Sigma 70-200mm F/2.8 EX DG OS HSM K-mount $1200
This is an excellent high quality lens. It's hardly been used (guessing a couple hundred shots max) and in very good condition. Selling it as it is a bit too large for my purposes. Comes with original soft case. Rare find with k-mount for Pentax cameras. Attached are also a couple of shots I took with it the other day.