All digital cameras have an image sensor, it is analogous to, if not exactly equivalent to the film in yesteryears camera technologies. It is what turns the focused light into an image you can view and share.  It is probably the most important thing about your camera.  From the beginning of captured light imaging way back in the pre-civil war days, the biggest enemy of photography has been dust and dirt. Retouchers and spotters were specialized technicians in the ongoing war for clean visual representations of our perceived reality. Digital is no different, except there are virtually dozens of cottage industries for image clarity. We sell several brands and I have familiarity with most. I am the ‘Sensor Guy’ here at Roberts Imaging. I clean an average of 3 a day, and I have seen it all; lint, hair, smears, even dust bunnies. Cute as those bunnies are they have no place on a sensor.
Recently I had a customer tell me that one of the brands (Photographic Solutions, the first brand actually) of sensor cleaning solutions was damaging sensors with their product, then another companys solution was also blamed. I found this hard to believe. It turns out that some early Canon Digital SLR cameras, the first 5D’s, did experiance some problems. Canon themselves did a study and determined that it only occured on some 5D cameras as a result of a variance in the coating on the surface image sensor of the EOS 5D.
As the ‘Sensor Guy’ I received a copy of a letter from David Stone, President of Photographic Solutions Inc. regarding this issue. If you have concerns about sensor cleaning please read the letter attached here. But the good news is this, the Photographic Solutions products are safe (when used as directed) for your sensor dust removing needs.

Now for the better news, Photographic Solutions has released pre-moistened travel 25 packs or 4 packs (on the left) shown with the original Swabs and Eclipse and E2 solutions. So if you have any (Canon, Nikon. Sony, Olympus, Pentax. Fuji, Minolta) Digital SLR and you want to clean your own sensor (trust me I’ll understand if you don’t want to come in and see me) more and more sensor cleaning products are hitting the market every day.