Fungus in my lense

[Russ]

Hah !!:cry: the fungus spread into the web?? How do I know the fungus spread into the web? Now I store my lense in dry cabinet...can it prevent the fungus spread? Also will it affect other lense? I mean, will the fungus from this lense spread to the other lenses? I have 20mm USM f2.8 lense. I dun hope this lense also kena:cry:

When fungus spreads, it has a nucleus with root like things growing outwards. Then new fungi appear as the spores spread and as these "roots" grow it becomes like a complex spider weblike group of fungi that eventually covers a large area of the lens elements that intrude more and more into your images.

 

[mighty_mouse]

Fungus can really spread from one lens to another??
i have been storing my fungus and non fungus lens together for yrs :cry:
....juz checked...no fungus on other lens leh....

i personally find that clear dry box with silica gel is not gd enough...my 2 lens got fungus cos i kept them in dry box and i have been changing the silica gel quite often but still kana fungus .....from my personal experience electronic dry cabinet is the better choice....

Yes, it's just opposite Peninsula Plaza where the popular Cathay Photo is. Hope that you will find a solution. Actually it's even more surprising now that I've read your later posts. So you only had the lens for a few months and it already had supposed 'fungus'? What shop did you buy the lens from? How did you store your lens during those few months?

Technically, fungus can spread from one lens to another. This is how your lens got infected also...we are assuming that it spread from some other object onto your lens by spores. The very act of using a lens exposes it to spores, but keeping the lens in cool, dry areas with a little bit of light (such as in a clear dry box with silica gel or a electronic dry cabinet with a clear glass front) slows the growth of fungus. There's plenty more spores in the air than might otherwise be produced from a fungused lens. In short, I think the storage conditions matter more than how closely the lenses are kept.

 

[fWord]

Fungus can really spread from one lens to another??

Again this is speaking only from a theoretical point of view. It would be logical too that fungus spores spread onto our lenses and cameras only from another infected object. Personally, I would prefer storing clean lenses and those known to be infected in separate boxes, which explains why I went through the added expense of purchasing another dry box for an old film body and lenses that I bought recently, because these have very likely had fungus before, and even if they've been thoroughly cleaned and no longer appear infected, I prefer to be on the safe side.

Moreover, overstocking a dry cabinet or a dry box is probably not a good idea since it would take much longer to drop the internal humidity to a safe level. Currently I'm not using silica gel but have chosen to stick to Thirsty Hippos instead, which seem to be very long-lasting and can drop humidity reliably to a safe level.

 

[JediForce4ever]

Another good way of keeping your lens fungus free is to shoot with it everyday/very often....

My lenses seldom go into the drycabi, bacause I use them often....so far so good.
Those Newspaper photogs also dont put their lenses into drycabis, even after shooting in the rain....and totally no fungus.

 

[unseen]

Another good way of keeping your lens fungus free is to shoot with it everyday/very often....

My lenses seldom go into the drycabi, bacause I use them often....so far so good.
Those Newspaper photogs also dont put their lenses into drycabis, even after shooting in the rain....and totally no fungus.

I've heard this to be true, but I've never figured out the logic behind it.
From what I know in bio, fungus will grow as long as the conditions are right. :dunno:

Jus wondering.. how someone keep the 600mm.. in a dry cabinet also?

 

[yaoxing]

Jus wondering.. how someone keep the 600mm.. in a dry cabinet also?

Keep it in air-conditioned room with air-con running 24/7...... ;p

 

[ricohflex]

yah, 28-135 IS USM is a good lens
fungus does eat into coating of new multicoated lenses
if cleaned, should be ok even if stains remain.
do not waste more money changing elements.

I have heard old German lenses with single coat do not seem bothered by such fungus. wipes clean.

guess different chemical formulation of the coating.
and multicoating has been said to be an advertising gimmick; but that is another story.

that is why you pay so much for the German stuff, ma.....
long ago they do not have aggressive "cost cutting"production staff.
(maybe now have) that's why I have witnessed one Leica M player preferring the 1980s M6 and NOT the brand new ones in 2006.

or maybe the German philosophy is "I make it good enough for my high standards and it will last you a lifetime and this is the high price"

Jap philosophy may be "I make it cheap enough and next year I will come out with new model for you and this one that you are buying is not meant to last, so you will spend money to buy new model/lens again. If I make something that lasts forever, how can my company survive"

Chinese/Taiwanese concept? .... even worse....

ask Joezilla for an expert view on the single coat & fungus.
you can see the same in filters.

 

[keith lee hh]

Will burnt the cap,as the sun ray will focus the energy on it.Aluminium will reflect heat energy back which would destroy the fungus.sorry did not reply earlier.

 

[ConnorMcLeod]

Will burnt the cap,as the sun ray will focus the energy on it.Aluminium will reflect heat energy back which would destroy the fungus.sorry did not reply earlier.

Sounds interesting.
After the fungus is destroyed - I suppose its burned, will it leave any residual behind ?