outofofficebrb
HARRO HUNNAYYY
The humidity, where you open the case, affect the level of fogging you are going to get. AC room has lower humidity. If there is no AC room, find a shaded area away from any sources of humidity, like bathroom, dining room, etc.
If the case doesn’t have vacuum port to pull the humid air out of the case, but it has room to insert desiccant (silica gel) pouches in air gap between the housing & the camera without interfering the sensor or button operation, insert those pouches as many as possible.
Another trick is to bring a gallon ziplock bag and do the following:
1. Get a cup of rice grains from dive operator’s chef
2. Pour that rice grains in the ziplock bag.
3. Put a sheet of dry paper towel on top of the rice grains
4. Take the camera out of its housing.
5. Lay the empty housing with its lens face down on the paper towel.
6. Zip up the ziplock bag, while you are messing with your camera.
7. When you are ready to insert the camera back into the case, then, open the ziplock bag, insert the camera into the case as quickly as you possibly can.
The air inside your camera housing should be fairly dry and won’t fog up your lenses underwater.
I do something similar but mainly for storage with a portable dry bag and a Ruggard rechargeable desiccant that is recharged by plugging in. I use a Hakuba portable dry bag and have a small Govee digital hygrometer in there with my Ruggard (PDC-RC is the part number) when I am in places with no AC for weeks at time. (I also travel with some land lenses and electronics I worry about mildew/mold, which I’ve had some issue with for items that aren’t moved or used much in high humidity environments.) I can keep humidity levels at a more ideal range this way and I love it. You can alternatively use a dry bag or ziploc bag as well.