I've been studdying lenses for three day now. And Focus and movements and prices and .......yadayadayada. I've printed out so much stuff I had to send out for paper and printer ink. After all this, one thing I 'feel' ( I could be wrong and please ... fill me in) is that Fujinon and Nikon don't deserve our business. They treat us like the crazy old aunt in the attic and give NOTHING back for all the dollars we spend with them. One has to be a regular net Sherlock to find anything meaningful about these lenses and thank goodness the private websites with links here have at least provided basic information. But Schneider Optic's website is a veritible encyclopedia of info that EVERYBODY here obviously uses. Well they are going to get ALL of my business. I believe in reciprocity. I like a corporation that seems to value my business and does nice things for me. I frankly don't give a rat's patoot if I can get cheaper lenses from our Eastern friends. Untill they give us the respect we deserve ... mechanically laminate them by means of helical sharp threaded devices!