Hi all,

I've got a Nikkor 105mm f/2.5 AI which cosmetically is in pretty good shape but the focus ring is really heavy (stiff), my other Nikon lenses focus pretty easily so I was wondering if this is normal on this lens or if there is an underlying issue. I got it from KEH so I could perhaps send it back to them as they said nothing about a stiff focus ring.

It's not impossible to focus, but it is fairly heavy and requires about as much effort to focus as my old Hasselblad C lenses.