
Originally Posted by
araugh
These were reasonably good until 'First Contact' (or other polymer based cleaners) became available. Basically the new polymer lens cleaners have pretty much made these 'brush' type cleaners obsolete.
The reason is simple, with a brush type cleaner, however soft the bristles, there is always going to be friction between the brush and the item being cleaned. Also, there is the risk of the brush becoming contaminated with particles of dust that are as hard or harder than the product being cleaned. This will eventually end up causing micro scratches on the surface or your lens (or coating).
First Contact is applied as a liquid. Yes, you apply it with a brush, but this brush is kept in the solution so there is less risk of contamination. The solution is lightly applied to the lens (usually one coat is sufficient) also remember that the friction is minimised as the first contact acts as a lubricant. Once applied, leave the lens alone to dry. Once dried the polymer layer is simply peeled off the surface of the lens, this lifts all contaminants from the lens within the polymer layer. The result is a pristinely clean lens 
Simples...
Jem
Last edited by Jem; 03-19-2011 at 14:25.
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