One thing that hasn't been mentioned is that this lens is very easy to use. Focus snaps in more cleanly than some of the other C/Y's. I wouldn't go so far as to call it an ideal macro lens but it's pretty good on close up shots that require a little more distance but not a full macro. Bokeh is kind of funky in the first shot here but ok in the second.

Ok, here are two from my ZA 135 1.8 on 1ds3:

Wayne,

Those shots are making me drool. Great work, but also, obviously, an exceptional lens.

How do you use a ZA on EOS? Aren't they AF lenses?

Anyway, please post more pics with this setup. I have been considering a Contax 100/2 or maybe 135/2, but this looks like another solid option.

Wayne, those shots are great, esp. #2. 3D to me.

I think Wayne can only shoot wide open with the ZA. Beautiful shots, Wayne. Do you use it with tube?

Thanks guys! Yes, it is a great lens. The lens has a manual focus ring which is very nice, has a slight bit of play in it though. I replaced the mount plate with a modified nikon-eos adapter which I redrilled to work with the ZA mounting holes. Aperture control is rudimentary by moving piece of cardboard/paper wedged against aperture ring post on inside of lens. I usually shoot it wide open or at ~f2.2.
Yes, I think the 2nd one was shot with a tube. I'll try to post some more soon.