The recent discussion of macro/micro photography of insects has not mentioned another advantage of carrying a camera with you on-stream. Since I started carrying my Canon Powershot three years ago, I have only fallen in once...and that was so quick that the camera (it got a bit damp) still works! I can't imagine carrying one of the digital SLRs while I'm wading...they are far to big (and $$$) for me to do that.
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