I took one apart and cleaned the aperture last night. It’s not too hard to get to compared to some I’ve worked on. A few tricks to getting it back in.
The entire back end of the lens was coated in a layer of oil. It looks like they heavily greased the gear ring that is driven and spins the focus “helicoids”. The oil separated from the grease and migrates all over. Not sure why they greased so heavily. It’s almost like they were trying to add some dampening feel to the manual focus ring. Other later AF-D lenses I’ve taken apart have had a sparingly applied dry lubricant on the gears.
jwpstl wrote:
Unfortunately, my 35 f/2D is now only f/2 thanks to stuck aperture blades. It was good while it lasted.
When I was a dance and theatre photographer back in the olden days (the 80s), the 35/2 and 85/2 lived on two Nikon F2A Photomic head bodies, and that pair of lenses, shot wide open most of the time, paid the rent. I was able to shoot dress rehearsals, so the shutter sound was no problem at all.
Both these lenses I found to be excellent; as others have observed, there are more to the look of a lens than measurements suggest. The 35/2 is an excellent lens, as is the 85/2, in my experience.