Re: Repairing A Stuck Condensor Iris

hi toomanytools
I made good experiences with high-test gasoline (octane). Clean gas
usually will not attack colors or optical parts. Zeiss recommends
mixing with a bit isopropanol. Do NOT use petroleum (lamp oil)!
Petroleum will attack the black finishing -> corrosion!

for protection and lubrication afterwars see my last post "restoring
an old zeiss", kevin gave some good hints there.

yours, heini

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