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DPChallenge Forums >> Tips, Tricks, and Q&A >> Is moisture on your digital slr bad ?
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Canon EOS-300D Rebel
 12/16/2004 07:15:16 AM · #1
I went down to Newport Beach, CA to take pictures of the annual christmas boat parade and before I could even start shooting the fog rolled in. Ten minutes after getting there my lens fogged up and my camera got wet. I immmediately packed up and went home fearing that I would damage my lens or even worse my camera. What are you suppose to do in this situation, is there a way to keep the lens from fogging and keep the camera dry ?
Olympus OM-D E-M5
Olympus 9-18mm f/4.0-5.6 M.Zuiko Digital ED
 12/16/2004 07:22:54 AM · #2
I would suspect that fog and other very humid weather conditions are more 'sneaky' than plain raindrops.
Remove the lens from the camera and put them both in a dry, warm place. Not too warm, though. Put a towel on a radiator and put the camera and lens there, the moisture should evaporate. Try to 'open' the lens as much as you can, (zoom in/out) and put the front down to let the water escape.
I hope this helps.
Canon EOS-40D
Tamron SP AF 28-75mm f/2.8 XR Di for Canon
 12/16/2004 07:36:05 AM · #3
I would imagine on top of a radiator would be WAY too warm - a normal warm dry room should be fine. Leave the lens cap off to let the moisture evaporate.

In the main, cameras are fairly robust - our D70 got fogged up every time we came in from the cold in Antarctica and we just let it dry off naturally in a warm room - as jonr says, open up the zoom fully to expose as much as possible. I wouldn't personally take the lens off the camera; leaving it attached gives some protection to the innards. You really don't want moisture on your sensor.
Nikon D70
Nikon AF Fisheye-Nikkor 10.5mm f/2.8G IF-ED DX
 12/16/2004 08:40:24 AM · #4
Have faith. I flooded my new D70 several months ago in an underwater housing. Surfaced, splashed some fresh water water on it, dried it with a towel and let it dry in the sun. It continued to work fine for the remainder of my trip. I sent it into service for evaluation and nothing was wrong with it. No water had gotten by the seals on any of the caps.
Canon EOS-1D Mark II
Canon EF 70-200mm f/2.8 L IS USM
 12/16/2004 08:48:21 AM · #5
You definitely want to dry out your lenses as best as you possibly can.

Lenses that are exposed and stored in humid conditions can start to grow fungus inside them, and once there, the fungus will spread and eventually etch the optics, which can not be corrected (except by replacing the effected elements, which can be quite costly).

See this page for pictures / more information.

Lens fungus was also briefly discussed in this thread.

Message edited by author 2004-12-16 08:51:48.
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