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Old 31-12-2009, 01:39 PM
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Garyh
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Join Date: Jun 2006
Location: Glen Innes, N.S.W.
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Quote:
Originally Posted by hikerbob View Post
I've been thinking about the mechanics of silica gel bags inside a camera and wondering about the effort involved in checking and drying them.

It occurred to me that it should not be all that hard to keep the silica gel outside the camera and have it in the flow path for a positive pressure system. A small tube fed into the camera body could keep the internal pressure above atmospheric and the silica gel could be in the incoming airflow path. It then becomes easy to check the state of the silica gel and to dry it as needed. If power is not a restriction a largish peltier in the incoming airflow path might also be useful.

Bob
Good info Bob... thanks
Was thinking of something similar...giving some positive pressure sounds like a great idea!
This is what I might be going to do....
Drill a hole in the side to insert a tube which is attached to a film canister or similar container which has a tube running to the warm side of the heatsink where the fan is pushing air. Was thinking the warmer slightly pressurized air would flow through the container into the camera.
Would you think that could work?
Or my second thought would be similar but no flow through just the silica enclosed in a container connected into the camera via a tube?...

cheers Gary
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