Go buy some cheap sensor swap from cathay or other camera shop. Its not too expensive. Else if you have the money, buy artic Butterfly Sensor brush. About $190.
I send mine to CSC and came back still dirty. And up fed up and got the Sensor brush. Works great and easy. Though kind of expensive for a cleaner. Can share with your friends with DSLR.
I send mine to CSC and came back still dirty. And up fed up and got the Sensor brush. Works great and easy. Though kind of expensive for a cleaner. Can share with your friends with DSLR.