Roast my Raja Ampat Itinerary

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Papua Paradise did as well but it was very small and AC was pumping which can cause problems on its own. It was the small cameras/gopros and cell phones that had the most problems. I kept my big dslr out of the AC and didn't have any problems. I just learned that it was important to have a different way to charge your cell than the cord (like a mag charger)because a few phones would not charge with the cord while there.
 
At least Raja4 Divers has dedicated AC room from cameras.
Yikes!!!! Just from a camera standpoint, the LAST thing you want is to leave your camera in an AC room. Everything cools down and when you go back out into the real world, you get major fogging and can even get condensation and water droplets forming inside the housing, camera, &/or lens. I always counsel to keep cams in a non-AC environment to avoid these problems.
 
Yikes!!!! Just from a camera standpoint, the LAST thing you want is to leave your camera in an AC room. Everything cools down and when you go back out into the real world, you get major fogging and can even get condensation and water droplets forming inside the housing, camera, &/or lens. I always counsel to keep cams in a non-AC environment to avoid these problems.
It’s all about humidity, my friends! The AC room is to keep the humidity lower than outside. The fogging would be on the outside lens, which would be fine underwater. The inside would contain dry air. And dry air when it gets warmer would not condense any water inside when there’s not much humidity to begin with. Besides they put desiccant in the room to drop the humidity even further.

You don’t want to open your camera outside the camera room and reintroducing the humid air into the dry air environment. It’s just a simple physics, cooling humid air would condense water in the air and drop its humidity. You can’t fog up inside your camera when there’s not much water to condense to begin with. I have never experienced inside part of my lens fogging up whenever I open my camera in AC room.

Have you ever seen home AC evaporator dripping water onto catchpan or onto the street for the case of an automobile AC systems? That is because the humid air in the room is being cooled and condensing the water from the air and returning the cooler & dryer air back into the room.

And you don’t want to bring your drink into the camera room where you would rehumidify the room by evaporating the water off the open top glass of water. Bottled water may be fine as long as you put the cap back on after you drink it.
 
It really depends on what your are doing or have to do with your camera during the day. Most aluminum housings don't have problems with fogging. The plastic/poly ones do have a tendency to fog. If you have to change your lenses or batteries etc. between dives on the day boat it does little good to set up in an AC room. That is why the GoPros really struggled. Its best to store your equipment in a room with AC/or climate controlled storage cabinet but while traveling this becomes more complicated. On most of the trips I have taken, which are too many to count on fingers and toes, the camera rooms on boats or at resorts do not usually have AC. Fans for sure but hardly ever AC.
 
It really depends on what your are doing or have to do with your camera during the day. Most aluminum housings don't have problems with fogging. The plastic/poly ones do have a tendency to fog. If you have to change your lenses or batteries etc. between dives on the day boat it does little good to set up in an AC room. That is why the GoPros really struggled. Its best to store your equipment in a room with AC/or climate controlled storage cabinet but while traveling this becomes more complicated. On most of the trips I have taken, which are too many to count on fingers and toes, the camera rooms on boats or at resorts do not usually have AC. Fans for sure but hardly ever AC.

Metal is a good thermal conductor. Once your metal camera case gets underwater, the air inside your metal camera case would cool the air inside your camera case quicker than that of plastic. The cool air keeps the fogging from occurring. But you are not getting rid of the humidity inside the camera case. If you put your camera under the sun while riding back from the dive site back to your resort, you’ll fog up the camera lens again.

SLR camera case has valve nozzle to pull moist air out of the camera case. That would minimize fogging up inside your lens.
 
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