A fungus is a living, growing microorganism; it is a combination of dust and moisture that enters the internal elements of the camera lens. Dust itself usually does not cause problems, but if this dust contains spores of the fungus and combines with moisture, the fungus will grow. Left unchecked, fungal growth can permanently damage glass elements in the lenses. This type of mold is most common in humid climates. It may look like small cobweb-like spots or spots inside the lens. Often the damage that it causes is minor, but the uncontrolled growth of fungi can ruin the lens.
How to protect the camera and lens from damage by fungus
There are two types of fungus. One type grows in an oxygen-rich environment, the other, which is more Continue reading