Tipster: Easily Get Rid of Surface Fungi


Fungi is the silent enemy of you camera lens. It may make your lens look hazy, and if untreated can damage your lens. Clean your lens with two items that you may already have in your house; ammonia and hydrogen peroxide.

Cameras not stored properly are susceptible to moisture, which causes mold to develop. You may find that your lens is cloudy despite having wiped with lens cloth or worst, spidery hairs may appear at the corner of the camera ends.

Good thing is, there is an easy solution for the fungi problem. But first let’s get the things we need to clean the lens out.

  • Ammonia
  • Hydrogen Peroxide
  • Cotton swabs
  • Lens cloth


  • Air blower

1. First thing to remember is to get rid of surface dust by using the air blower.
2. Now mix half/half ammonia and hydrogen peroxide. A little can go a long way so maybe just use 1 ml of each solution. Also, this mixture does not store well so just mix what you need.
3. Dab your cotton swab with the solution and clean your lens using circular motion from outside going inward.
4. Let it dry and wipe clean with a little water.
5. Finally, wipe clean with the lens cloth.
6. Repeat if needed.

Now, you may not get rid of all the fungi but you will definitely see a big difference. The fungi can grow on the surface of the lens or inside the lens parts. So to fully rid your lens of fungi, you have to clean the parts as well. If you’re technically skilled or brave enough you can disassemble the lens and clean the parts.

Good luck!

written by projectsnap on 2011-10-25 #gear #tutorials #camera #lens #tipster #dirty #haze #clean #fungi


  1. simonh82
    simonh82 ·

    I had fungus on a couple of lenses that I recently picked up with a camera, but they were on the internal surfaces. I've sent one off to be cleaned professionally as i didn't fancy messing up the optics.

  2. fischkombinat
    fischkombinat ·

    This one is definetly a very useful tipster! Thank You for that!!

  3. projectsnap
    projectsnap ·

    Thanks guys :)

  4. falsedigital
    falsedigital ·

    Holy shit your lens is scratched up. Are you using a bag of sand as a lens cap?

  5. projectsnap
    projectsnap ·

    i got this from cleaning my grandfather's 30 year old box, hence the scratches

  6. lupideeloop
    lupideeloop ·

    I use an UVA-C lamp to erradicate the fungus infection. 8 hours irradiating is enough by each side. You must protect the plastic parts and body of the cam with aluminum film in order not to get it burned as after months under the outside summer sunlight exposure...
    If it's needed I open the lens to clean glass by glass.

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