I just bought the 10-24mm and a uv filter along with a 2-stop nd filter (didnt buy the one I wanted anyway) I took the filters off because it was too dark to focus at that time, then they fell out of my hand and into the now roaring tide. I was pissed. that was 70 bucks right there. Then somehow my new cybersync transmitter fell out of my bag in the craziness. another 60 or so bucks right there. I still have to order a new one. Would have been worth it if I had gotten the ribbon though ;)