This is the most impressive camera weather-proofing system that I've ever seen! While this entire package runs $1,375.00 USD, it is completely portable (even the tank of compressed air weighs no more than 3 lbs. and can be worn on a belt), surprisingly durable, and made domestically in the US! The coolest part is that the lens guard is hooked up to a High Pressure Air System (HPAS), which can clear the lens guard of dust or water droplets at the touch of a button. This lens guard is also adaptable to 15mm, 17mm, and 19mm rods.
Marc, the EVP/CFO of AAdyn Technology, has promised to send me a demonstration video of this system in action, along with a photo of James Cameron himself (director of The Terminator, Titanic, Avatar) using this system when he filmed up in Alaska. I promise to post these as soon as I receive them.