I just bought a Tokin 300mm f2.8 manual focus and I found a Nikon TC-16A teleconverter for sale. It would be really nice to get that final AF capability after focusing on the subject. I own a Nikon D700 and I've searched the web to see if this teleconverter will autofocus on this body. I found contradicting results, some said it worked, others said they had to modify it. Did anyone here use this teleconverter *unmodified* on a D700?