tho60
Well-known
I own a Jupiter-11 (4/135 mm) telephoto lens in M39 mount(from 1958). It should be relubed. But I could not remove the optical block. I tried to unthread the lens block with rubber mat and even a nutcracker, but without any effort. I did not dare to use more drastic tools, e.g. chuck or clam. They can damage the lens. Does the optical block tighten firmly? Or it has an RF thread? What kind of tips do you have?
Wipes24
Newbie
Re: Jupiter - 11 dismantle
Re: Jupiter - 11 dismantle
Try this place
www3.telus.net/public/rpnchbck/Jupiter-11%20dismantle.html
Good Luck
Re: Jupiter - 11 dismantle
Try this place
www3.telus.net/public/rpnchbck/Jupiter-11%20dismantle.html
Good Luck
The optical block should unscrew from the focus mount with a twisting force, and the rubber grip should have done it. Try a mouse pad. If it does not come out, try a little solvent. Dried grease can be as tought as glue.
BUT: I have found some FSU lenses that the optics were glued into the mount, cheap way of shimming it. Not much to do if that has occurred.
BUT: I have found some FSU lenses that the optics were glued into the mount, cheap way of shimming it. Not much to do if that has occurred.