Hello from Japan and a question ...

I have just found this forum while looking for some information about a Jupiter-12 LTM lens and wanted to say hello.

The information that I can find nowhere is about disassembling of the Jupiter-12 LTM helicoil to clean and relube it. There is information about the Kiev version available on-line but the mount is different from the LTM version.

If somebody would have a tip, it would be greatly appreciated !

Hello. Lenses for RF cameras ranging type Jupiter-12 differ only operating segment and way of fastening of the camera body.(bayonet or threaded connection) Contax or LTM

Dear Vladimir,

thanks for reply and comment. I was able to solve the problem some time ago, a very tiny grub-screw close to the "MADE IN USSR" has to be removed first, then the two parts can be unscrewed. I had to use a spanner wrench to grab the inner part to be able to apply the required torque.