..."I only use a wet cleaning under extreme circumstances. I've cleaned somewhere in the neighborhood of 15,000 sensors working at Lens Rentals, and contrary to what SLRist says, wet cleaning leaves behind all kinds of lint and residue that must be cleaned off afterwards. I've used literally every liquid and applicator in existence, and not one of them can be used without subsequently using dry methods to remove the mess that wet cleaning causes. However, all methods require much practice."
I really don't mean to harp on this guy, but what he's saying doesn't make any sense. He's saying that wet cleaning leaves a mess and if that is his experience, then he's pretty inept at sensor cleaning. Maybe that's why he just uses a brush and adhesive. But more to the point, dry before wet is backwards and will just spread out any lubricant. I am just very skeptical that he has successfully cleaned that many sensors with his backwards approach. Youtube has become today's newspaper, don't believe everything you see on it. It seems like the Youtube rage is to use 3 or 4 tools in all of these sensor cleaning videos, but here less is more - a good wet system should get at least 95% of the dust/debris/lubricant. For most people, that may be sufficient, but if you're slightly compulsive, you can go back in with a brush or pen to get the rest.
Truly the only video that comes close to the proper techniques is Photosol's, it may look like he's using a lot of pressure, but the "neck" of the swab is extremely flexible, so if you've never seen or used one, it may look much different than it really is. You should use no more pressure than writing with a pen or pencil with the wet method.
Again, there is so much misleading information on Youtube these days and there are millions of so-called "experts" as well. Just keep an open mind and realize that many of these are not just on the internet to altruistically make your life better. The vast majority of them have a product or service that is being hawked to you in the guise of helping you out. And that's fine if you make n illusions about it.
We have tried in our tutorial to highlight the precautions the prudent person must take when cleaning a sensor. We go as far as saying that if you reach a certain point without success you should stop and send the camera to the manufacturer. We emphatically state that sensor cleaning in general is not for everyone. We also stress that the biggest problem that bedevils most D-SLRs today is lubricant. I have not seen a Youtube presentation that is alined with this view, which in turn makes me extremely skeptical that these people have as much experience and/or knowledge as they claim to have. There are many products that are effective at sensor cleaning, my only aim here is to bring to light some misinformation that is being presented and interpretted as fact.
Nicholas