I have a Sony HX50 that has dust on the sensor. As I zoom the dust spec gets bigger. It appears as a roundish smudge in the photos. I have tried the vacum cleaner suggestion as well as the comressed air suggestion to remove the dust. I have even opened the camera back and bottom to blow air into it. I have had the camera looked at by a couple of repair places but they each have quoted over $400 to clean the camera. This is the price of a new or refurbished HX50! Surely this camera is not meant to be disposable! My question is, is there a manual available on breaking down the HX50 and cleaning the sensor myself? I have seen videos on replacing the lens, which looks easy enough but I have no idea where the sensor is located or how best to remove the dust spot I am seeing. Any ideas would be appreciated. There has to be a cheaper alternative then $400 to repair a $400 camera!