sandy_est
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It's an interesting phenomenon that everyone who has bought this product is defending the company so frivolously. It sure says something about human nature.
I for one remain very skeptical.
I'm all for entrepreneurship and I don't like it when small companies get bad-mouthed. However, manufacturing devices for cleaning sensors of expensive cameras is a very responsible task. Regardless of that, Visible Dust doesn't mention any of the risks involved, but they don't want to take legal responsibility either. They just warn against other methods, so that their product would look better.
RServranckx wrote:
So, what's this about mixed reviews? Heck, if the Sensor Brush is good enough for Rob Galbraith, Michael Reichmann and Moose Perterson, then it's good enough for me!
I've also read the reviews, and I think that Rob, Michael and Moose are extremely irresponsible. They have tried a method that they knew nothing about, found out that it works, and recommended that people should "not walk, but run" [RG] to get them - without mentioning any potential risks whatsoever. At the very least, they could have mentioned that if you break the sensor with the product, your warranty is void.
It looks like our favorite professionals were so thrilled with this new product that they just threw reason out the window. And let's face it, they are professional photographers, not professional engineers or scientists so we shouldn't listen to their conclusions about safety anyway... Well, they probably have the bucks to buy new cameras if they damage their current ones. Good for them.
Too bad Canon isn't making statements about these specific products. At the moment they advise against using this method.
I agree with David and think that this product has "SCAM" written all over it. At the very least, this company is giving out very controversial statements. Let's look at what is on the VD site:
visibledust.com wrote: Attracting protein and DNA to the glass-like surface of a biochip for attachment requires special preperation of that surface. Because dust has many common characteristics with DNA, our products are able to utilize that same technology.
We aren't trying to attract dust, we are trying to remove it.
visibledust.com wrote: Sensor Brush has a wooden handle to reduce the risk of electrostatic discharges to the sensor. Regular brushes may transfer 5000-10000 voltage charges to the sensor.
Avoid using similar looking brushes. Traditional brushes (Artist or Paint brushes) can cause microscopic abrasions or staining. This can lead to blurry images due to sensor fatigue which is hard to correct in Photoshop or other graphics programs.
Most traditional brushes contain mixed filaments that will stain the sensor cover glass over time. Somtimes the brushes are mixed with animal hair containing scales which act as an abrasive on glass surfaces. These microscopic scales are not visible to the naked eye but can over time cause serious damage.
The cutting process for traditional brushes can create heat which causes gumming at the end of the brush, an example can be seen to the right. ...Show more →
This is where it starts to smell "scammy". Is it really so that using traditional brushes is extremely hazardous, but these brushes are absolutely 100% safe. There is not a single mention on the website of any possible risks involved, but they still say that they won't take any responsibility if you damage your sensor.
It seems that they REALLY don't want us to try out regular brushes. Now why is that? 
I find it very hard to believe that material of the brush handle would make electrostatic discharges any more likely.
visibledust.com wrote: Addition of positive molecules to the surface of Sensor Brush™ makes it even stronger for dust attraction. This is achieved through gas chamber or chemical treatments using highly advanced equipment.
OR chemical treatments! So which one is it? Gas chamber or chemical treatments? Sounds like they don't know themselves how the brushes are manufactured... It's of course a huge relief that they MIGHT BE using "highly advanced equipment". 
On the old website was a picture of a regular document scanner (among other things) and above it was written: equipment used in the process of making the brushes.
visibledust.com wrote: NEVER ATTEMPT TO CLEAN YOUR CHAMBER WITH MICROFIBRE CLOTH OR COTTON SWABS. These materials will tear and leave more behind.
They sure don't leave us with many alternatives...
And the conclusion: IF they sell regular (but selected) brushes for sensor cleaning while making all sorts of claims about the technology used in the process, and while strongly advising against using other brushes, then it IS a scam. All the claims about plasma chargers and advanced processes are probably just put there to justify the high prices.
If they really manufacture the brushes themselves as they imply AND really inspect every brush microscopically, which they claim, then this MIGHT NOT be a scam, but I'm not convinced. At least there isn't a single picture of the brush manufacturing process on their website, but then again, they don't directly claim that they manufacture the brushes either.
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