About 3 years ago I bought myself an expensive underwater camera by Olympus, I noticed though that even though this camera was designed to come with me in the water, the camera's compartments began showing signs of erosion, so I took the plunge and went out to purchase an underwater housing for the camera, which would further protect it, and allow me to take it underwater at deeper depths.
The housing chamber came with a bunch of small silica gel packets that
you add to the housing in order to keep it from fogging up.
Unfortunately the silica gel packets did not do the job, and while in
the water my entire housing unit would begin to fog up making it
impossible to take good photographs underwater.
Removing the camera and cleaning it off, or waiting for it to dry took
longer than I was willing to wait, and to top it off the fog would
always come right back the second I hit the water and swam down to
deeper levels, where the temperature got cooler, which in turn would
create an instant fog over the housing, blocking out the lens.
I heard that rubbing Dawn or toothpaste onto the housing would cure it
from fogging up, but after trying both methods, I came to quickly learn
that the results were not as long lived as I needed. The housing would
still fog up, no matter what I did.
I did a little research online to see what others were using to fix
this annoying issue. As it turns out, most of the professionals were
using Sea Drops, which are designed to kill fog on dive masks. I figured
what a great idea, because Sea Drops worked perfectly on my mask, so
why not on my housing?
I applied a drop of it to my housing and rubbed it all around, and waited for it to dry.
Sea Drops fixed the issue. Now every time I go out with the underwater
camera, I apply Sea Drops before going, and it keeps fog away for the
If you are having issues with your underwater housing fogging up,
definitely, definitely buy yourself a tube of Sea Drops to fix the