Has anyone ever experienced a situation where your lens remained persistently fogged up despite the temperature being equalized between the camera and the ambient air? Is that even possible? I ask because I was recently out doing some landscape photography in what could best be summed up as "misty, forested mountains" and was hit by the dreaded lens fog. Yet, I used the same procedure as I always have to equalize the temp between my camera and the air... it's always worked for me in a pretty wide range of different circumstances. Nonetheless, I just couldn't get my lens to stop fogging up until the mist disappeared from the mountains... and the best shots were long gone. Early rise at 4:30AM, an hour of driving to get there, two miles of hiking... down the drain. So I started thinking... is it possible that the humidity was just so high that my camera was just collecting dew? Maybe in the same way that, on certain very humid mornings, a meadow will be covered in water droplets enough to soak my boots all the way through... even though the meadows have been exposed to the ambient air temperature all night long and are presumably as "equalized" as they could possibly be. This whole situation has me really puzzled and frustrated, since I've photographed in plenty of misty, humid conditions before and never experienced this problem.