How To Prevent Fungus In Photographic Lenses

You have something to ask me a lot is on the issue of mold in the lenses. So I decided to add some information and a link super useful for everyone experts on the subject and do not need to worry about legends and doubts about it.

Why Should We Worry About The Storage Of The Lens?

Because the lenses are perfect places for the proliferation of fungi. And having a lens invaded by fungi is bad for the future operation of the equipment. Besides the amount of mold can interfere in the pictures made with the lens affected.

As The Fungus Arriving On Our Lens?

It works like this: the fungi need a damp location and food to survive. If we let our lenses in locations without humidity control we will be creating a perfect environment for the fungus to survive. If this location is easy access to dust or dirt we will also be giving food for them.

PS.: fungus is not rocket science, so consider the food in quotation marks. In real life the dust serves more as fertilizer than as food.

How To Avoid

You need to basically two things:

Control moisture: too much humidity gives way to fungi and humidity less spoils your lens. You’ll need silica gel or any other product of humidity control and a hygrometer (cheap). More details at the link below.

Do not leave the lens in contact with organic materials: such as dust, wood bookcases, leather cases, etc. A closed glass shelf is the most indicated.

Remember that control moisture is important, not necessarily to get rid of it. If you take a lot of moisture from the room where you keep your lenses they can also damage (less moisture also hurt.) There’s no point in just taking the moisture, we need to control the humidity. OK? Read the link below for detailed information.

Learn More Details On The Subject

There’s a great FAQ on the subject in the article “Fungi: what is this?”, Alex Aguilar. Is the didactic and perfect explanation I’ve ever seen about it and there you will find detailed tips on how to control the environment where you keep your lenses in order to let them safe fungi.

My Lens Already Have Fungus, And Now?

If your equipment has already been overrun by the “Critters” take up a technical assistance because in many cases a deeper cleaning can save your lens.

Frequently Asked Questions

Keep all separadinho in tightly closed plastic would avoid? Put those bags with moisture-wicking inside the plastic is a good?

If you are talking of plastic pots (like those of kitchen call tapauér) is a good Yes! And put baggies anti-moisture help, but remember to control the humidity. If you don’t control the moisture it is possible that tea bags (or other products) get too much moisture, which is also harmful. The humidity must be between 35% and 50%, regardless of the product you use for this.

I keep my lenses in their own skins when we bought, those, sandwiched inside, no danger of giving deep inside those covers?

YES! Very danger! Mainly because most of the covers, purses and other accessories (such as the COP who goes around our neck) are highly contamináveis materials for dirt and other organic materials which, as I have said, are “food” of fungus. So look for safe materials such as plastic, glass, metal, etc. Leather cases are another example of what we need to avoid.

Is valid put lenses in the Sun to prevent fungus or make her get used to the light?

No. To everyone who commented on the issue to let in light or expose the lens to the Sun, indicate read this link that I passed Alex Aguilar. I quote an excerpt of the explanation below.

“[…] in the modern objective, especially in better quality, things got complicated. Thanks to application of multiple layers (multi-coated), you don’t get more UV penetration of 400nm in objective, making it ineffective this kind of antifungal treatment.”

Desumidificadora Box Of AndrÉ

When I wrote this post for the first time, in 2010, I met Andre Luiz. He felt the need to keep their equipment cheaply and safely decided to create the moisture your own boxes dehumidifyingsystem. Andre sent me one of their boxes (BK-1s) and used it for many years. Any fungus appeared on my lenses, so I think it’s OK.

And how does a term electrical box? Andre explained:

The working principle is simple: the term generator is a container made in brass which houses a filament of nickel chrome hyper scale to burn the microorganisms in the air, floating heat and produce a stream of artificial convection inside the box that reduces internal moisture, retaining dust. It also raises the temperature of the Crystal of the lenses not allowing existing water condensation in the air. In this way the fungi do not find favorable conditions to your development.