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| 03-16-2017, 03:25 PM | #1 |
| MTO-11 helicoid cleaning / re-lubrication?
I recently picked up nice ЗМ-5СА and MTO-11 mirror lenses, both in excellent condition and great optically, but with very, very stiff focusing. Based on information I found online, I've partially disassembled the ЗМ-5СА (taking the two halves apart), cleaned the threads on both halves and re-lubricated them, and I'm very happy with the result - the focus ring action is smooth and consistent throughout its rotation. I now want to tackle the MTO-1000, but don't know if it's the same or similar procedure, or if there are any "gotchas" I should be aware of. I can't find any obvious details online, so I'm wondering if anyone here serviced their MTO-1000 focusing, and if so, can you offer any information or advice that would help me to get it right first time? Many thanks in advance!  Last edited by BigMackCam; 03-17-2017 at 03:11 AM. | |
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| information, k-mount, mto-1000 helicoid, pentax lens, slr lens |
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