I made a quick rain cover for my Nikon this morning before heading out in the weather for some street photos. All you need is a one-gallon Ziploc freezer bag and some electrical tape. First I cut a corner off of the freezer bag, making a hole slightly smaller than the hood on my lens. Then I squeezed the hood through the hole and gave it a few wraps with the electrical tape. Lastly, I applied the same technique to the eye piece area on the back of the body. That's all there is to it. It worked like a charm and was comfortable. Plenty of room in the bag to change camera settings etc. I'll be keeping this bag and a roll of tape with my camera gear.