Preventing condensation

[gazzag]

Need your please.

I'm thinking about visiting the butterfly exhibit at London Zoo. I've been before - not with a camera - and it's a bit hot and sticky in there. I've read about people putting their gear in plastic bags to avoid condensation. But how does that work? How long before you expose your camera to the environment?

Any tips would be appreciated.

Gary

PS Also off to Thailand in December and will have same problem x100 going from air-con'd buildings out into the street.

 

[mrtoad]

give the stuff time to heat up, the mist should clear up after a few moments inside
condensation will occur when you come out..so the idea of sealing it in...to me sounds a bit risky
i have photographed butterflies in the big rooms they are kept and never thought much about the problem..it didnt arise...iirc
the same goes for temperate rooms in botanical gardens
just give the camera time to heat up slowly
and cool down slowly
taking the lens off should help to evacuate the body chamber and the lens is sealed anyway..
?

 

[jimnicholson]

I've been to a couple of local butterfly houses with my camera. The only trouble I had was with the front element and the viewfinder misting up. As others have said though once the camera has warmed up its ok. I didn't change lenses inside the butterfly house though as I didn't want the extra humidity inside the camera body.

 

[Carl V]

I've been to a couple of local butterfly houses with my camera. The only trouble I had was with the front element and the viewfinder misting up. As others have said though once the camera has warmed up its ok. I didn't change lenses inside the butterfly house though as I didn't want the extra humidity inside the camera body.

I had the same problem when I visited the Eden Project in Cornwall and went inside the biomes (I think they're called). But it clears once you're inside for a little while.