I have a Nikkor-Q 135mm F2.8 and it takes beautiful images, but the focusing seems to be stiff and/or overly damped. Is there any method of re-greasing or lubricating the focus to make it not so stiff? Short of ripping the whole thing apart?
And if it needs being torn apart, are there any shops that specialize in les repair? I have a rare Vivitar Series 1 24-48 that was in storage for 20 years and it's almost unusable because it's so stiff.
There's a guy up in Maine who runs super16inc.com and he does all kinds of lens service for motion picture primes and zooms. I've heard that his work is top notch but he'll want your camera to do the re-collimation properly.
I would be much more interested in servicing the lens myself. Since it's an older optic, I would hope that it's far simpler construction than a modern day prime. Plus... It can't hurt to learn something like lens servicing.