Need some input about high humidity

[PeterAM]

I am planning to do some shooting in late October/early November, inside a group of greenhouses. There is a substantial increase in humidity (and temperature) when in the greenhouses and I'm a bit concerned about my cameras (K10D and DS), both in that environment and with condensation upon exiting the structures. If anyone has had experience working in this environment, your thoughts would be appreciated.

[rburgoss]

The problem is not with humidity itself but with condensation.

Condensation will occur anytime your camera is "colder" than the surrounding environment, even on clear days. Like coming out from an air conditioned space.

I suggest "warming up" your gear before getting into the greenhouse. You can do so by just letting your camera and lenses (in case) warm up under the sun for some time. No need to leave them scorching. Just a bit warmer than the environment.

Robert B.

[drabina]

Or at least arrive early so the temperature of the camera can adjust and the condensation will evaporate. That's a lot better than trying to wipe it off since you most likely will create smudges on the lens.

[rfortson]

If you have time when you arrive at the greenhouses, you can use the ziplock baggie trick. Put your cameras inside the baggie while they are still cold/dry. Take them inside the greenhouse and allow them to warm up inside the baggies, then remove them. This way, you won't get condensation on the cameras, but rather on the outside of the baggies.

[rogerstg]

Originally Posted by rfortson

If you have time when you arrive at the greenhouses, you can use the ziplock baggie trick. Put your cameras inside the baggie while they are still cold/dry. Take them inside the greenhouse and allow them to warm up inside the baggies, then remove them. This way, you won't get condensation on the cameras, but rather on the outside of the baggies.

+1. I used to do that with cameras and binoculars when deer hunting, before going into the camper for the night. The temp equalizes a bit faster if you squeeze out (or suck out) as much excess air as possible before sealing the bag.

I live in very humid Louisiana, and I carry my camera in an cheap insulated plastic and cloth lunch carrier I bought at Target for less than 10 bucks. The camera has to sit out awhile after being in a chill air-conditioned environment before I can shoot, because the lens has to warm up to prevent condensation. Everybody is right here. Let your camera acclimatise. Humidity isn't good for your sensor, but don't let that stop you from doing what you have to do. Go for it!