Originally posted by JinDesu As an FYI, weather sealing does almost nothing with condensation. As long as air can get in somewhere, humidity will as well. Weather sealing is intended to restrict water droplets, etc.
You can offset condensation by having the body and lens reach the temperature of your surroundings while in a bag with desiccants. It'll reduce the moisture within the camera and lens, and with the temperature stabilized, condensation will not likely form.
Great photos btw
I am very surprised at the statement "weather sealing does almost nothing with condensation".
I have a different experience with the K-5 (also K-5 IIs) and the 18-135 WR lens. I live in California as well as Toronto. where weather changes can go from to extreme ends. In the San Francisco example from an outside temp of 8 centigrade to 28 centigrade indoors. I have never had any condensation.
But did suffer condensation when using a non WR Lens like the Sigma 10-20 on the K-5.
Then last August we we were in the Canadian Rockies. We encountered terrible weather - rain, sleet, snow, fog & extreme cold. Cloudy and dull always with worst conditions on the Columbia Icefields and the awesome Glaciers. The Sigma 10-20 would refuse to move upto Infinity Focus on the K-5 IIs, and I had to focus manually - no focus clutch on this lens. I would check back lens fogging frequently on the Sigma but found none. I am still perplexed at this behavior - AF not moving the lens closer to Infinity for distance landscape shots.
But the 18-135 WR lens worked flawlessly.
When we returned to the sweltering heat of Toronto, the Sigma 10-20 began behaving properly.
Regards.
Condensation is tiny droplets of water entering the camera to fog up the lens and settling on the motherboard. And I think the WR lens & camera seals lived up to its specs.