In the past I've always tried to avoid shooting in light rain. If I did it would be briefly with 35mm and not using my Mamiya TLR, too many places for water to go. Now I use large format more, again I'm concerned about the camera and lens getting wet, especially folding up my Toyo 45A with rain or snow trapped in the bellows. Should I be overly worried, and what is the best way of protecting a camera in light rain or snow?