Gary,
I have a Nikon 35-70mm AFD lens, its a push-pull zoom type.
Its built like John Prescott'sY-Front gusset!
A solid piece of glass and so sharp you'll cut your teeth on it!
Heavy but used on the right body it balances very nice.
Also got a nice sigma EX 105mm lens, but that isnt built anywhere near as good as the nikon.
regards,
Tim
Regards,
Taffyboy