In article , deschai@server.uwindsor.ca says...

>Anyone have any opinions on this lens, and is it still
>produced (manual focus Cannon mount). I had a look at
>one of these recently.... seemed a bit heavy and a bit
>pricey. The seller recommended this lens highly, but
>being unfamiliar with it... I passed.

I would have, also (unless its macro/zoom capabilities
were very important to me, and even then....). It is huge,
HEAVY, slow, with a minimal zoom range, and, I thought,
not outstandingly sharp, so why bother?
(It is not still produced.)
Hope This Helps