I guess it was inevitable with what I put the camera thru while on our backpacking trip but I have a couple dust bunnies on the sensor. I will post a photo later as I'm posting this from my iPhone in the car on my way home from work. Criscam.com is the only authorized repair center and they offer a $57 or so clean and check service I guess I will have to have. I've double checked the lens. I had a third party lens cover over the lens housing the entire time I was in the field along with an LCD cover. But the dust on the extended lens housing must have entered the camera while opening and closing so many times in the field.