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02-04-2010, 06:24 PM   #1
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Fungus prevention

What is the proper way to keep lenses so that they dont get fungus ect on them? Is just keeping them in your gear bag ok?

Thanks

02-04-2010, 06:50 PM   #2
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They have to be dry.
Make sure you have silica gel handy 'coz enuf moisture and the dark environment of the bag will surely guarantee fungal growth..not unless you live in a non-humid place.
02-04-2010, 10:08 PM   #3
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thanks

10-4 thanks...
02-05-2010, 04:22 PM   #4
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Ideally, you want to avoid the root cause of fungus: crap getting sucked into your lens.

Every time you zoom or focus your lens (whether automatically or manually) and your lens gets longer as a result, you're sucking in air. Particles in that air get deposited on the lens surface. That's how dust gets inside the lens. Fungus cells can be attached to those particles. Under the right conditions (as mentioned above, humidity and darkness), that fungus starts growing and eventually becomes visible.

So ideally, you want to avoid using your expensive equipment in conditions where you might suck in those particles. Keep a cheap lens handy for those shooting situations, or just don't shoot. Of course, that's not always very practical. So what GerryL mentioned is a very good point. If you keep your equipment dry at all times, and use silica gel packs liberally, that should help prevent the growth of the fungus that did get sucked into the lens.

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