Uploaded April 2020 | Updated September 2026, 2 days ago
Dismantling and cleaning of a Carl Zeiss Jena Flektogon 1/15 Exakta mount lens.
Disclaimer:
I do not condone the methods that I am demonstrating in this video to clean or repair a valuable lens. I have no intentions to sell or attempt to pass this off as a restored lens.
The proper way to disassemble the lens would be to mount it securely in in a clamp to support it while removing the retaining rings.
I purchased this lens CHEAP along with a couple other vintage lenses that were in rough condition, but good optically. It appears as if someone had already attempted to dismantle the lens in the past.
I will be posting a follow-up video comparing this lens with a few others.
Dismantling and cleaning of a Carl Zeiss Jena Flektogon 1/15 Exakta mount lens.
Disclaimer:
I do not condone the methods that I am demonstrating in this video to clean or repair a valuable lens. I have no intentions to sell or attempt to pass this off as a restored lens.
The proper way to disassemble the lens would be to mount it securely in in a clamp to support it while removing the retaining rings.
I purchased this lens CHEAP along with a couple other vintage lenses that were in rough condition, but good optically. It appears as if someone had already attempted to dismantle the lens in the past.
I will be posting a follow-up video comparing this lens with a few others.
![Extracting a Broken [garbage] Pipe Nipple](https://i.ytimg.com/vi/8GidubxIixM/mqdefault.jpg "Extracting a Broken [garbage] Pipe Nipple
The process used to extract not only a pipe nipple, but a pipe nipple made of a sintered material, presumable brass or bronze.
The process involved cutting away as much as possible of the damaged nipple using a bolt extractor, since a purpose - made nipple extractor would not fit in the garbage nipple.
The bolt extractor bit into the material of the fitting, however, instead of extracting it, it pulverized the material. I continued this process until I began to bite into the threads of the tank bung with the extractor.
At this point, I began using a 1/4 NPT tap to cut the remaining material out of the original threads. After clearing all of the material, I made a final pass with the tap in order to ensure a clean mating surface for the new STEEL pipe nipple.
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