135mm f/2.8 M42 : Teardown and oily diaphragm cleaning

Hello Friends, This lens here has seen some action before reaching my hands, the owner, a friend of a friend's girlfriend love this lens and the diaphragm was blocked, took it to some camera shop and they asked a ridiculous amount (100€) just to determine what the issue was. He told me the symptoms and I told him, that's just an oily diaphragm........now give me money.......hahahaha Anyway, I show you how to fix a very common issue on a very popular vintage lens. keywords: 135 2.8, 135 2.8, 135 f/2.8, 135 f/2.8, 135 f/2.8, 135 f/2.8, 135 f/2.8, 135 f/2.8, 135mm f/2.8, 135mm f/2.8, 135mm f/2.8, 135mm f/2.8, 135mm f/2.8, 135mm f/f/2.8, diaphragm cleaning, oil in aperture blades, oil in diaphragm, oily diaphragm, aperture cleaning, diaphragm cleaning, oily aperture,,-s,-s,, lens haze, haze in lens, hazy lens, Can haze be removed from lens?, What does haze look like?, How can you tell if a lens is haze?, How do you fix a cloudy camera lens?, Are haze lenses bad?, How do you get rid of lens fungus without opening it?, What is haze caused by?, What is difference between haze and fog?, How can you tell if there is dust in your lens?, Is it worth buying a lens with fungus?, What is Schneideritis?, How can you tell if a lens is scratched?, How do you prevent lens haze?, Why do my photos look hazy?, Why is back camera blurry?, How do you remove haze from glass?, How do you kill lens fungus?, fog in lens, foggy lens Some useful stuff (I’ll get a small commission if you order thru any of the links): lens storage boxes (wine glass storage): https://amzn.to/3GWkeZB jar opener : https://amzn.to/4gAUiAg Air blower : https://amzn.to/3T83fHb infrared filter : https://amzn.to/3zmD2K3 Lens grease : https://amzn.to/4gesOA5 Lens cleaning kit: https://amzn.to/3Yo49A4 Optical cleaning cloth : https://amzn.to/3Pt36uW Optical cleaning paper: https://amzn.to/3VT67a4 Optical cleaning fluid: https://amzn.to/323HFci https://amzn.to/3uLEgwu https://amzn.to/49Lmehd Rubber tools: https://amzn.to/3mEcdco https://amzn.to/3FtXfAK Lens spanner: https://amzn.to/3FN3rW0 Screwdriver set (includes J-tips): https://amzn.to/3LTPi9G Scredriver set : https://amzn.to/3hhX4AJ JIS screwdrivers: https://amzn.to/3hmGG1A (This set has J000, J00, J0, J1) JIS screwdrivers: https://amzn.to/3HElRrU lens sucker: https://amzn.to/49Lmehd (I’ll get a small commission if you order thru any of the links): DONATION: https://paypal.me/DiyExtravaganza1?lo... If you find this video useful, informative and adds value to you (and possibly saved, or made some money by repairing the camera or lens), then consider donating to the channel