Nikon 35-70mm f/2.8D AF Zoom-Nikkor Lens "stiff zoom lens" Questions

17-35mm f/2.8 Nikkor. Zoom ring rotates smoothly and easily 17-24mm but is really stiff from 24-35mm. Idiosyncrasy of this lens or mechanical problem? It's faulty. Return it for refund or exchange

zoom my lense, It is very stiff. The shutter is slightly closed, almost wink-like & a little round plastic piece is loose inside at end that attaches to camera. The little round plastic piece detached

zoom is stiff. Hello, I got a Nikon zoom nikkor 35-70mm lense, which I use on a Nikon FM2n fully manual film camera. The zoom component of the lense has become rigid and does not move well. It usually

...stiff. There's really not very much an end user can do to adjust these lenses.  They are precision mechanisms with small, moving parts and optics that all must remain free of dirt, dust and ...

...lens cluster and again will fit two wrong ways and one correct. It has a projecting lug which travels down a groove in the tube. When I had reassembled mine it still felt stiff and about to seize ...