How to Remove Fungus From Camera Lenses

by April Ort
Brand X Pictures/Brand X Pictures/Getty Images

Fungus can swiftly infect a camera lens that has been exposed to the correct environment for spore growth. Moist, warm conditions allow the development of fungus, which displays itself on camera lenses as cloudiness accompanied by spiderweb-like protrusions.

Fear of spreading the fungus can prevent some owners from attempting to remove it from their camera lens, but as long as the glass has not been permanently damaged, the task can be accomplished with careful application of some common household items .

Step 1

Remove the lens from the camera according to instructions within your model's owner manual. If fungus has infiltrated the inside of the lens, it may need to be disassembled. This is usually best left to a professional or someone with prior experience dismantling camera lenses. If you notice traces of fungus that aren't easily accessible, consider visiting a camera store so a qualified individual can tackle the maneuver.

Step 2

Sweep away any dirt and debris, which may scratch the lens during cleaning, with a lens brush.

Step 3

Mix a solution of two tablespoons each of hydrogen peroxide and ammonia. Do this in a well-ventilated area or wear a breathing mask to prevent fume inhalation.

Step 4

Dampen a clean cotton swab with the solution. It should be moist but not drenched.

Step 5

Begin at the outer edge of the lens and gently wipe around the perimeter with the damp cotton swab. Rotate the swab as you wipe so there is a clean surface touching the lens continuously. You may use several cotton swabs during this process as you wipe the entire lens.

Use a water dampened microfiber cloth to clean the lens after fungus removal. Dry the lens with a separate microfiber cloth and reassemble your camera.


  • If fungus has contaminated your camera lens for an extended period of time, the glass may have become etched and will need professional repair or replacement.


  • Select a warm, dry area to preform your camera cleaning and repair to prevent the spread of fungus spores.


Photo Credits

  • Brand X Pictures/Brand X Pictures/Getty Images

About the Author

April Ort began writing in 2007. he has more than 15 years experience in the financial industry, has held a travel agent license and has interviewed a variety of celebrities. Ort is currently working in the health-care industry as an operational trainer and completing her Bachelor of Science in communications with a focus on journalism.

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