Like to add my two cents, based on my own experiences, and those of pros I have occasionally shot with:
1. Corrosion can set in at a later date and still kill your camera, regrettably. With salt water this is almost guaranteed!
2. Before turning the soaked camera back on - Always, and I mean always, use a hair dryer or another heat source for an hour or longer directed at the various sections of the camera! Remove battery and memory cards first. Leave overnight or longer and dry all over again for half an hour or so.
3. If salt water or water with heavy sediment is the culprit, rinse the camera well, maybe several times, and on then do the above steps. This is the only, small chance that you may save your camera from serious, camera- destroying corrosion! This kind of corrosion can take months to set in, incidentally!
4. Replace the camera battery and sd card, when they have been dried sufficiently!
5. After drying out, as outlined above, when you open a built-in flash that requires a camera turn on, make sure your camera is upside down and use the hair-dryer/heat source on this area for an additional/special dry-out. If you can open the built-in flash without turning on the camera, do this step as part of the initial and secondary dry-out...
5. The longer you can avoid turning on your camera -and the better you can dry it out before turning back on - the higher your chances of permanently restoring your camera to good and long-term heath!
Lastly, no guarantees on the above methods, since water immersion and penetration is never a recommended occurrence!
Good luck!
Last edited by mtgmansf; 05-21-2015 at 08:34 AM.