Hi! Hope this is in the right place. Wellll I've taken my camera to the beach and changed the lens there a few times. Even though I tried to be really care, I know sand seems to get EVERYWHERE!:er: sooo- any tips on how I can clean it? From the lens to the camera. --AlSO- I dropped my polarizer filter in the sand... how should I clean this? I dont want to just wipe it down and then scratch it... okay thanks for the tips!