![PF58m_1: Eight screw MC mount](https://a4.pbase.com/g2/62/611962/3/97684950.ema860D6.jpg) PF58m_1: Eight screw MC mount |
![PF58m_2: Mark long screw positions](https://a4.pbase.com/g2/62/611962/3/97684952.GOxuQmSF.jpg) PF58m_2: Mark long screw positions |
![PF58m_3: SR mount with a spacer](https://a4.pbase.com/g2/62/611962/3/97684953.G7fHi2qB.jpg) PF58m_3: SR mount with a spacer |
![PF58m_4: Disassemble mount and its spacer](https://a4.pbase.com/g1/62/611962/3/97694480.36al3Tpa.jpg) PF58m_4: Disassemble mount and its spacer |
![PF58m_5: Save the parts safely](https://a4.pbase.com/g1/62/611962/3/97684954.mseW9drb.jpg) PF58m_5: Save the parts safely |
![PF58m_6: The lens without the mount](https://a4.pbase.com/g2/62/611962/3/97684955.AwUlXJp3.jpg) PF58m_6: The lens without the mount |
![PF58m_7: Don't loose a ball beaing for F-stop](https://a4.pbase.com/g1/62/611962/3/97684957.dXHFzgyA.jpg) PF58m_7: Don't loose a ball beaing for F-stop |
![PF58m_8: File down aperture ring tab](https://a4.pbase.com/g2/62/611962/3/97684958.y5CRaX3y.jpg) PF58m_8: File down aperture ring tab |
![PF58m_9: Mark long screw holes (not needed)](https://a4.pbase.com/g2/62/611962/3/97684959.FTSW5meZ.jpg) PF58m_9: Mark long screw holes (not needed) |
![PF58m_A: Titanium coated drill heads](https://a4.pbase.com/g1/62/611962/3/97687670.PaO26UQw.jpg) PF58m_A: Titanium coated drill heads |
![PF58m_B: Mark hole positions on M42-mount](https://a4.pbase.com/g1/62/611962/3/97684960.XGW37YdG.jpg) PF58m_B: Mark hole positions on M42-mount |
![PF58m_C: Make cone shape dent for screw head](https://a4.pbase.com/g1/62/611962/3/97684962.KPjuDShU.jpg) PF58m_C: Make cone shape dent for screw head |
![PF58m_D: File down alminium spacer (not finished yet)](https://a4.pbase.com/g1/62/611962/3/97684963.y7cF1MVn.jpg) PF58m_D: File down alminium spacer (not finished yet) |
![PF58m_E: Temporary assembly of the new mount](https://a4.pbase.com/g2/62/611962/3/97684965.KXNx46ee.jpg) PF58m_E: Temporary assembly of the new mount |
![PF85m_1: SR-mount of PF 85mm F1.7](https://a4.pbase.com/g1/62/611962/3/97742780.9cvZBcQQ.jpg) PF85m_1: SR-mount of PF 85mm F1.7 |
![PF85m_2: Take out silver cover/spacer](https://a4.pbase.com/g1/62/611962/3/97742782.N8nrpTaj.jpg) PF85m_2: Take out silver cover/spacer |
![PF85m_3: SR-mount base and possible EF-mount base](https://a4.pbase.com/g1/62/611962/3/97742784.ik0N7Egd.jpg) PF85m_3: SR-mount base and possible EF-mount base |
![PF85m_4: Measure the thickness of unwanted part](https://a4.pbase.com/g1/62/611962/3/97742786.LnFEhJmA.jpg) PF85m_4: Measure the thickness of unwanted part |
![PF85m_5: Thickness is ~1.4mm](https://a4.pbase.com/g1/62/611962/3/97742788.MblXT08q.jpg) PF85m_5: Thickness is ~1.4mm |
![PF85m_6: Install a spring to control aperture](https://a4.pbase.com/g1/62/611962/3/98119130.2WNzOEy3.jpg) PF85m_6: Install a spring to control aperture |
![PF85m_7: Detail view of new linkage](https://a4.pbase.com/g1/62/611962/3/108170678.AMqEia3s.jpg) PF85m_7: Detail view of new linkage |
![PF85m_8: Spacer filed down](https://a4.pbase.com/g3/62/611962/3/108170680.hBooeoiv.jpg) PF85m_8: Spacer filed down |
![PF85m_9: EF-mounted](https://a4.pbase.com/g9/62/611962/3/150119229.CKw4IZgt.jpg) PF85m_9: EF-mounted |
![Completed](https://a4.pbase.com/g3/62/611962/3/97741426.MjC8uj8d.jpg) Completed |