Problems with 502

[tbc]

Andy, what you say about the risk of using non-specialist grease is true. However, 2 things prompted my last post. 1. After some experimentation, I had good success with some greases. 2. A good friend had E Leitz in NY CLA a 50 2 DR Summicron. The grease has begun to deposit an oil film on the diaphragm blades. The job I did on the 50 2.8 Elmar is still good, and I did it way before my friend sent his lens to Leica. Maybe they had a bad batch of grease?

 

[hektor]

Dear Andy, Larry & Tom,

Leica uses different special lubricants made to their own specifications. There are different formula for different lenses.

Some years ago when the focusing of some of my older lenses was not what one would expect I took them to Leica and watched while the technician disassembled the focusing mount, washed it in Shellite and then applied different lubricants to different lenses. The mount of my 5cm Summarit was very slightly worn, so a heavier variant was applied to take out the slack.

He gave me the "universal" mix which I now apply myself when necessary.

Why not write to TS@leica-camera.com and get the correct lubricant which copes with heat and cold and all the other dimensions such as splattering elements and/or corroding the helecoil.

Best wishes,

Justin