Slight rock in rokkor lens

[brianentz]

I have rokkor mc 135mm f2.8 lens that I picked up for $10. Nice shape but it has a slight rock. The front element that distends out when focusing has a slight wobble to the element mounted firmly on the camera. I don’t know if it will affect performance. I took it apart to see if I could fix it but I couldn’t see the cause. Any tips or advice?

Coming in from the rear looking down there is a small hole in the base that has no screw in it. I have no screw for it and don’t know if it needs one. Seems like it would need more than one screw to secure the front element.

 

[xkaes]

It would help if you had photos -- close-ups.

 

[_T_]

I have a 50mm 1.7 Rokkor-X with a similar problem. It's annoying, but I've never seen it cause a problem with my images. That said I don't use it very much.

I think with your location it should be pretty easy to find a nearby camera repair shop that could get it back into shape without too much cost or trouble.