Quote Originally Posted by PDH View Post
Kowa also make a 250, which I have the, a marco 120?, and 2X converter, I have seem 250 on ebay. I also recall a 500 but I have never seen one for sale, might be mistaken about the 500.
I checked, Kowa did make a 500mm F8. In over 30 years I have never seen a 500.