So I can not understand the recession here. Did exactly as directed my sensor cleaned and already then able to recognize with the naked eye that this detergent has left extreme streaks. Well, check with a photo is obviously better ... made promptly, aperture 32, neutral paper and I'm scared. The sensor of my 60D looked disastrous. Everywhere black dots, approximately 20x longer as before cleaning. Did the game then repeated with two more rods and my Visible Dust Arctic Butterfly added fetched, until I was able to mount the sensor so reasonably free of the streaks. For me absolutely no buy recommendation .... now I know why the cleaning at the dealer cost 60-80. 0 of 5 points