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02-01-2011, 11:13 PM   #1
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Camera Lens Storage and Humidity?

I store my camera equipment in a plastic storage box (about 100cm x 50cm x 50cm). I recently purchased a hygrometer. I put it in the box to see what humidity reading I'd get. It reads between 55-65%. Is this a good reading? As in, is it too dry or too humid?

Or does different pieces of equipement require different values? I guess my ultimate aim is to prevent mould and to keep the gear in good shape.

Thanks in advance.

02-02-2011, 05:05 AM   #2

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Going only from the settings on my dehumidifier, 55-65% is a bit damp.

Personally I'd be looking at adding silica gel packs to the mix! There are plenty out there that (a) change colour to indicate moisture, and (b) can be dried out again in a microwave or conventional oven.

Reading elsewhere 'ideal' lens storage apepars to be on open shelving, (although dust could be an issue).
02-02-2011, 11:02 AM   #3
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I think ~60% is a bit too high. I have a cigar humidor and I have to keep my cigars around 65-70% which is considered high. For lenses I would try to bring that down closer to about 45% (just my guess). I have never read anywhere exactly what humidity lenses should be stored in.
02-02-2011, 11:18 AM   #4
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Right now, my lenses are stored under these conditions:

Great for them, maybe not so great for me!

02-02-2011, 12:57 PM   #5
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Dave wins!

I'd actually caution *against* sealing your stuff up too tight *unless* the moisture control in there is very good. Sealing that moisture *in* particularly in the dark* can be a bigger disaster than not doing much. Just take care not to do anything too hard for too long that way.

What I use for a budget solution is just filing cabinets with some dry-packs in there: (And a tub of Damp-rid in that room) it's not perfect, particularly when it gets kinda swampy down here, but it seems pretty sufficient. It was a perfectly-good solution up north when very humid days were pretty rare.
02-02-2011, 01:03 PM   #6
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Desiccators are your friend in these kind of conditions.
Use them liberally in the closed space the equipment is stored and you have the best chance of averting fungal infestation and mechanical degradation.
02-02-2011, 04:06 PM   #7
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I store mine in plastic sealed bags with dessicant in each of them separately. But to be honest I have no idea if it is the best for the lenses. However, all my lenses are pretty cheap and nothing is very expensive so it should keep at least until I purchase the good ones. Just don't leave them in the car in a hot environment.
02-02-2011, 05:10 PM   #8
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Original Poster
Thanks for the replies guys! Sounds like I need more selica gels...


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