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08-13-2010, 11:14 AM   #1
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Ughhhh! Moisture inside lens

I have moisture on the inside of my 70-200 Sigma. I took it outside from the air conditioning yesterday evening and it fogged up. I let it sit in my camera bag overnight with a few gel packs and a cloth but still no luck yet. Any suggestions?

08-13-2010, 11:22 AM - 1 Like   #2
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Try leaving it outside of your bag and place the silica gel near the openings. That cound potentially allow the moisture to evaporate.

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08-13-2010, 12:16 PM   #3
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If I were you I'd buy one of the countainers of dessicant used to dehumidify closets and basements(most hardware stores should have them), and I'd put it and the lens in an airtight container together. That would be a sure bet to dry it out if it's gonna happen. If that doesn't work it'll probably need a trip to a repair place.
08-13-2010, 12:21 PM - 1 Like   #4
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Or a in a container and cover the lens with uncooked rice. It worked for my sister in law's cell phone when it fell in the pool.

08-13-2010, 12:21 PM   #5
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I suspect this is not a major issue and that putting it out in the sun on a warm dry day would probably resolve it. I do that from time to time with all my lenses since humidity is a chronic issue here.
08-13-2010, 12:46 PM   #6
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QuoteOriginally posted by dadipentak Quote
I suspect this is not a major issue and that putting it out in the sun on a warm dry day would probably resolve it. I do that from time to time with all my lenses since humidity is a chronic issue here.
That worked for my digital pedometer when it fell in the pool.

We really should stop drinking beside the pool.
08-13-2010, 03:44 PM   #7
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QuoteOriginally posted by Nowhere Matt Quote
That worked for my digital pedometer when it fell in the pool.

We really should stop drinking beside the pool.
Nah, give up walking around the pool ;~)
08-13-2010, 06:16 PM   #8
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QuoteOriginally posted by FunkyMonk Quote
I have moisture on the inside of my 70-200 Sigma. I took it outside from the air conditioning yesterday evening and it fogged up. I let it sit in my camera bag overnight with a few gel packs and a cloth but still no luck yet. Any suggestions?
I had this happen to me a couple of years ago in Hawaii. I let it bake out in the sun, and everything was fine...



08-13-2010, 06:43 PM   #9
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Air tight I think is the key here. There is natural moisture in the air so if you have it in an air tight conatiner with a dehumidifier, I think that will solve your problem.
08-13-2010, 09:57 PM   #10
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Gel packs will work only if in sealed environment. Seal the lens and packs in a ziplock bag for a week will do.
08-14-2010, 12:41 AM   #11
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QuoteOriginally posted by dadipentak Quote
I suspect this is not a major issue and that putting it out in the sun on a warm dry day would probably resolve it. I do that from time to time with all my lenses since humidity is a chronic issue here.
+1
Put your lens in the sun for 1-2 hours (without caps!) and it will do the trick. More generally it works with most electronics as long as you leave the doors/opening opened.
08-14-2010, 04:23 AM   #12
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QuoteOriginally posted by dadipentak Quote
I suspect this is not a major issue and that putting it out in the sun on a warm dry day would probably resolve it. I do that from time to time with all my lenses since humidity is a chronic issue here.
HOWEVER: with an older lens that may have seen service in dirty air conditions (dusty roads & smoky clubs), this episode might leave water-spots (but that means it was due for serious cleaning anyway.)
08-14-2010, 03:50 PM   #13
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I dropped my lens in a stream. It worked fine but there was a haze on the interior elements. At the time, it was not much more to buy a new lens than to have it cleaned, so I went that route.

I'm not sure every surface can be cleaned in some modern lenses, because some of the elements may be combined together in modules that might be permanently assembled, but not quite water-tight.

Paul
08-14-2010, 04:00 PM   #14
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This works

I bought a 50mm lens off ebay, and due to my error, it sat in a mailbox for 6 days with snow on the ground. opened the package and moisture inside the lens.

took the wife's hairdryer and carefully warmed the lens in my hand while waving the hair dryer at it with the other hand. constantly rolling it in my hand ensured an even warming, i think.

Anyway, started seeing the fogged area reduce in size, over 30 minutes or so and then it was gone. no residue left that i could see. Still have it and it works fine.
10-26-2010, 05:13 AM   #15
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Hello, may I know is the silica gel packs safe to use?

I've got some from a South Korean seller on ebay and hope it doesnt include the blue-> pink indicators (cobalt chloride)

Thanks
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