This lens is in excellent condition.
It has Duclos mod for cinema use with duclos focus and zoom rings 0.8 pitch
I also converted these to EF mount using Leitax Nikon to Canon EF adapter.
Also added a 77 metal lens hood that screws on. so I could film without a mattebox.
It is parfocal, this particular lens holds focus while zooming out and in.

Just the mods (duclos, leitax and lens hood cost me over $400), trying to find a new home for this lens, 
Using this lens, I was able to figure out aesthetics of zooming during a shot.  
And now that I m sure about that aesthetic and how important it is to my work, I invested in a professional cinema zoom lens.

I think this is a great cheap priced lens for anyone beginning cinematography or video shoots with Canon DSLRs