Be aware that a lot of what is called "fungus" is actually crystalline deposits from some liquid, probably lens cleaner, seeping between the elements. Fungus will cause permanent damage to lens coatings, but the crystals can be cleaned off without damage to the lens.
Be aware that a lot of what is called "fungus" is actually crystalline deposits from some liquid, probably lens cleaner, seeping between the elements. Fungus will cause permanent damage to lens coatings, but the crystals can be cleaned off without damage to the lens.