Disassembling om system lens1/9/2024 ![]() ![]() Sure enough, there are some screws underneath. ** Caution: If you would still like the rubber grip back, make sure to be extra careful at this step as you will likely destroy the rubber!** Owing to the age of the lens, the rubber broke almost immediately. At this point, I used a screwdriver to pry the grip open. I couldn't really find any entry points after some time, so I guessed that the screws must be hiding behind the grip of the lens. ![]() To mark positions when disassembling the helicoids of the lensesĪ focus helicoid or helicoid is a tube whose length can be adjusted to vary the distance between the lens and the camera’s sensor to achieve correct focus.I did not really have these around, but are important for proper lens repair.For twisting or having more friction when needed.This can help significantly when redoing the steps.Other camera or phone camera to take pictures when disassembling.Bright Torch or Smartphone Torchlight to see inside the lens.Rubbing Alcohol (Medical type) or lens cleaning solution.Lens cleaning cloth (the type that can be easily used to clean lenses).Lens spanner tool (I did not have this, which I probably should).Try to find the right screwdriver or taking it out will be more difficult If the size of the screwdriver doesn't fit well, don't force! I learnt this the hard way by stripping some screws. High quality ones will reduce markings on the screw-heads In hindsight, I should have magnetised the ends of the screwdrivers, which would have helped greatly in preventing the screws from flying everywhere If you'd like more general repair advice, read this blog instead as I am no professional at this. Recently, while writing this review, I discovered a comprehensive guide to tear-down which you should take a look. I hope this experience can serve as something to read before disassembling the lens, and I hope to collate some of the mistakes that I made. If you are unable to tell, try to start with the front elements as those are easier to clean and disassemble ![]()
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