Hi I picked up two "wet spots" from condensation whilst in Cambodia last year I will not go thru the pain of trying to take you thru the problems i had with Canon/Jessops and Dixons to resolve my issue I researched the www and I came across this company. The service was excellent and the items (swab kit) did the the trick and I have had no issues since
Just Limited Kinetronics Sensor Cleaning Tools
Cheers Peter