Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
10-10-2014, 04:00 PM   #1
Wingincamera's Avatar

Join Date: Oct 2012
Location: Spanaway, WA. USA
Photos: Gallery | Albums
Posts: 557
Moisture removal

I just returned from a two week trip to India, which has high humidity. I had my K-5 II and a few lens. Where I live I don't worry too much about humidity problems, so this is new to me.
I purchased a box of DampRid, which is 10 oz packets of calcium chloride. I placed all my lens & camera inside a kitchen plastic bag with one calcium chloride packet, sealed up the bag and thought I would leave it for a while. I took all the lens caps off, removed the battery & memory card from the camera, leaving those lids open, and also removed the lens from the camera while wrapped inside the plastic bag. I might have to do a sensor cleaning after all this, but that is not a big deal.

My question is how long should I leave the equipment inside the bag with the DampRid? I am thinking over night should be long enough, anyone with experience with this have a comment?

10-10-2014, 05:24 PM   #2
Veteran Member

Join Date: Jun 2014
Posts: 340
I normally use dried uncooked rice instead. Wrap the lens or electronic device In a towel and seal up the edges with tape . Place the device in a plastic bag, And fill with rice. It can take up to two weeks Or more to totally dry out the device. You can speed up the process by laying it on a heating pad, and turn the pad on low. It really depends on how wet your device is. Make sure to monitor the heating pad closely, to make sure it doesn't get too hot.
10-10-2014, 06:04 PM   #3
Site Supporter

Join Date: Aug 2011
Location: New York, NY
Photos: Gallery
Posts: 1,614
The major potential problem is likely zooms/lenses that "beathe" a lot in zooming/focusing. They will essentially hold the humid air and as it gets cooler it will condense inside the lens. I should think if you use them (exercise) some more (in your local cooler drier [than India] conditions), that will replace the moist internal air.
10-11-2014, 04:13 AM   #4
Veteran Member

Join Date: Jul 2009
Location: London
Posts: 880
Is there evidence of humidity affecting the camera and/or lenses? You might be going through this for nothing. Just because you've been to an area with high humidity doesn't mean it'll automatically have a negative affect on equipment.

10-11-2014, 10:15 AM   #5
Loyal Site Supporter
AquaDome's Avatar

Join Date: Jan 2014
Location: New Carlisle, IN
Photos: Gallery | Albums
Posts: 1,463
Calcium Chloride gives off ions. This ionic charge is what attracts water to it. This ionic charge can also lead to the corrosion of metal. Besides that, Calcium Chloride can attract enough moisture to make a puddle of Calcium Chloride solution - a variety of salt water - that could prove more troublesome than the moisture you were originally worried about. I would stick to silica-based desiccants or dry air.
10-11-2014, 11:42 AM   #6
Wingincamera's Avatar

Join Date: Oct 2012
Location: Spanaway, WA. USA
Photos: Gallery | Albums
Posts: 557
Original Poster
Thank you all for the replies. Maybe I was over worried a problem I might not have. I had taken my 18-135 WR lens, plus three primes. I ended up only using a prime one time, the rest of the time I just left the 18-135mm on the camera. This was a mission trip and not a photography trip, with very little free time. When going there, I wasn't sure what to expect. Next time I think I will just bring a point & shoot camera, which would have worked fine for what I was doing.
10-11-2014, 03:51 PM   #7
Site Supporter
ebooks4pentax's Avatar

Join Date: Apr 2007
Location: California, USA
Photos: Albums
Posts: 454
Just use rice like mentioned by promacjoe. Leave your lenses in the rice unti you need the lenses. To shprt of time will not remove all moisture. Too long of a time will do no harm. I did that also with my iPhone thayt got wet in the pool. It started to work again after a week.

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
bag, camera, dslr, humidity, lens, moisture, photography, plastic
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sony RX100 Visible moisture behind lens. frascati Non-Pentax Cameras: Canon, Nikon, etc. 2 04-07-2014 03:29 AM
Regarding Moisture Rockinghorse Winner Troubleshooting and Beginner Help 3 12-20-2012 07:50 AM
Disassembling K20D, moisture removal tempelorg Pentax DSLR Discussion 6 04-28-2011 11:52 PM
Lenses and moisture... ben_leg Pentax DSLR Discussion 2 07-27-2010 05:11 AM
moisture inside lens jani Pentax SLR Lens Discussion 7 10-18-2008 05:30 PM

All times are GMT -7. The time now is 12:35 PM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]