I recently got a Mitakon Zhongyi 135 mm f2.8 EF lens.
http://www.zyoptics.net/product/mita...or-135mm-f2-8/
It's manual focus prime lens, but it seems what they saved in avoiding the electronics required for autofocus, they made up for in the optics. It is excellent, and really suits my needs. The lens hood extends about 10cm, so is also handy as a dew shield.
I've only been able to use it on my DSLR in daylight so far, but look forward to testing it on my CCD soon.
There is also an f/2 85mm model, which might also be worth considering (I don't have this).