Xerxes wrote in post #17917300
Even if you store them in proper conditions, there is a chance your lenses can catch fungus. What measures have you taken to prevent this?
I'm thinking of using an ozone generator inside of a poorly ventilated box. Would this damage the coating of the lens?
What about using a high powered laser just outside of the UV spectrum to burn them off? Or is the only solution a good CLA. I'm interested in killing off any fungus before they have a chance to take hold, not curing a diseased piece of glass.
You're going off the deep end.IMAGE LINK: https://flic.kr/p/nFAskx IMG_5474
High powered laser?
No trying to be rude, just trying to help you back to reality.
Even if you did live in a humid, hot place, you'd be fine. Fungus grows in dark, damp environments. Fungus very much dislikes sunlight. Spores are every where. That's unavoidable. You breath them out of your nostrils often times. They're on your skin at all times too. They lay dormant. As long as conditions are not favorable to them to grow, they do not. They need food, like all living things. So it's not just conditions for them to do their thing, but also, to have a source to pull some energy from. Fungus doesn't exactly prefer to live in a lens, as it's ultimately going to die in there, even after it's really been in there a while and done some damage. You're left with the remains and some etched glass. But this is mostly fear-mongering.
Put your glass under UV light, or just natural sunlight. Do it once every few months. Store in a dry sealed place. You do not need a humidor, laser, or professional disinfecting service. Just good old fashioned UV light.
I buy used lenses from all over the world too, WITH fungus, sometimes on purpose, for years. My 5D's, 1D's, etc, all are fungus free, even after using this kind of stuff. Just give it a UV bath and you're good to go.
Enjoy photography. Don't worry yourself to extremes.
by Martin Wise
, on Flickr