This is a new adventure with a Jena BM 80mm f/2.8 lens that belongs to the Praktisix. This is a lens that my friend Carles has loaned to me. The camera that has already done its work in his family and was not at its best, and neither was the lens.
Although the camera was apparently in good condition it exhibited the typical excessively dry/viscous greasing phenomenon and the textile shutter curtain failed frequently, so I decided to park it and focus on the lens.
In the first examinations of the Jena BM 80mm f/2.8 lens I saw that the focus ring was blocked and the plastic ring of the same was cracked. There was no choice but to disassemble it to regain its functionality. It resisted longer than expected, perhaps the blows of many years had deformed it. The front ring with the characteristic marks seemed glued but finally gave way at my insistence.