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TG-2 Review

Started May 5, 2013 | User reviews thread
BorisK1 Veteran Member • Posts: 5,645
Reasons for fogging

Ken G. wrote:

I would think that a waterproof camera should not fog, as fogging can only occur if there is moisture present.  And moisture is what 'waterproof' is supposed to keep out.  I have not owned one of these cameras before, other than the TG-1, TG-2, and Nikon AW110, and I only had each of those for a couple weeks each to test image quality.  Never had the opportunity to use any of them underwater.  But to me, anyway, none of them should fog up.  I'd take that camera back, or talk to Oly directly if you need to, and make the case that a waterproof camera should not let moisture get in.

Or am I missing some obvious reason why anyone should expect these cameras to allow any moisture past their seals?

Waterproof cameras are (hopefully) air-tight.  Which means both the amount of moisture trapped in that air, and its pressure, are constant - so the due point temperature inside the camera is also constant.

However, the temperature of the camera body (and the air trapped inside) is not constant.  Changing the temperature changes the relative humidity.

If you cool the camera body below its internal dew point, you get condensation.

The solution is to try and fill the camera with cool, dry air.  Some people reported success with leaving the camera in front of an air conditioner overnight - but the air conditioner typically cycles on/off.

I don't see how "anti-fog" lens coating can have much effect on that.

 BorisK1's gear list:BorisK1's gear list
Olympus Tough TG-4 Olympus E-3 Olympus Zuiko Digital ED 50mm 1:2.0 Macro Olympus Zuiko Digital ED 40-150mm 1:4.0-5.6 Olympus Zuiko Digital 11-22mm 1:2.8-3.5
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