Ha ha - thanks Arthur, this sensor has curled up worms, exotic hairs, dirt etc - the only thing it's missing is the twigs. I wonder if the Camera shop guy will find some in there. I think for this initial clean I will get the pro's to do it but I am definitely going to learn to do it myself. Not only will it save $ at the camera shop but the travel is near 200km round trip. I have saved this into my faves for ease of finding but thank you very much for sharing your knowledge on the subject Reminds me why this is such a great site