My camera is a compact Lumix TZ18 and in the 17 months I have had this model it has been back twice under the guarantee for a mark on the lens showing on my pictures. There is a mark on there again and the guarantee has run out so it was going to cost £40 plus postage to get it cleaned. I googled cleaning compact cameras and found a tutorial video on how to clean the sensor on the TZ series and with the help of that I have stripped it down and done it myself. The hardest part was putting all the 12 screws back as they are so small. Apparently the Lumix TZ series is the worst one for dirt on the sensor. Anyway next time it happens I will be able to do it myself and save myself some money.I do love this camera as it takes marvellous pictures. Just to let you know there is help on the web for other compact cameras also. So go on give it a go. I am feeling very pleased with myself.