http://www.ebay.com/itm/121233438827
This one's about half the price of the last one I saw sell on ebay, and looks to be better condition?
I'm tempted to go for this one.
I was looking at that too...
Looks like there are only two places in the world that have them available for rent.
In the USA:
http://taglighting.com/rental/lenses/anamorphic/zeiss-ultrascope-anamorphic-prime-lens.html
and
In Australia:
http://www.cameraquip.com.au/rental/au/35mm-lenses/anamorphic-prime-lenses/zeiss-ultrascope-85mm-f2-lens/
I'm tempted to rent one and try it out. I've searched the web trying to find if there's anyone else who rents them? Anybody? Or footage available?
If anyone is near Los Angeless, you should check out the Kubrick exhibit at LACMA. It was pretty amazing. Including his lens collection.
I was ordered to step away from his Mitchell camera, because I was too close.