Lens fungus can be a real pain for photographers. As the fungus grows and spreads, it will start affecting photo quality; you’ll have a difficult time focusing your shots and lose clarity and contrast. The good news is that there are ways to prevent lens fungus and remove it.
Fungal spores typically get onto camera lenses by travelling on dust particles and will thrive in moist and dark conditions. So to avoid a fungal infestation, make sure to keep your lens clean and dry. This involves:
- Making use of lens filters, caps, and hoods to protect your lens from dirt and dust
- Getting a good quality camera bag (we recommend something from Thule or Billingham Hadley)
- Using a camera rain cover in wet weather conditions
- Letting your lenses dry after a shoot in a humid or moist environment
- Never touching your lens with bare fingers
- Using an air blower to get rid of any dust particles on its surface ASAP
- Storing your lenses in a dry place
If your camera is already affected, you can remove lens fungus yourself if it’s on the lens surface. Leave the lens out in the sun, and the UV rays will desiccate the fungus to dust, after which you can use an air blower to get the remains off. For eliminating more stubborn fungus, you could try using a half-and-half mix of hydrogen peroxide and household ammonia. But make sure to only spray it on a specialised camera wipe and not the lens itself, as excessive liquid comes with its own problems.
And most importantly, if you are not confident in your ability to get rid of lens fungus yourself, or if it is on the inside of the lens, removal is best left to the professionals.