This is one of my most respected lens and rare but since I am using medium format system I am giving it up. The lens is the Contax S-Planar T* 4.0/100. I also include the Contax PC (perspective control) auto bellows. This system can be used with the Canon DSLR via an adapter. The Canon 1 series camera will not work with the auto bellows unless an extension tube is placed prior to the adapter. The 5D will work. I do not recommend this lens for those that use the crop sensor since it would be more difficult for you to manual focus.

Condition: Lens in mint- and the auto bellows in Excellent. I am very particular about the condition of the lens that I describe here than from some of the folks that I bought from the buy and sell forum.
Price for both items: $2000