References: <002f01c647c5$87b0d400$0200a8c0
	<441780F1.3060306
	<b2aaaff4aa4ca7b398b239b1b863dd87
Date: Thu, 16 Mar 2006 08:32:03 +1100
Date: Thu, 16 Mar 2006 08:32:03 +1100
Cc: 

Bill,
What sort of outlet sells cerium oxide (where to buy from) ?

Bernard

> I was surprised that the Custom Scientific filters were showing a 
> similar problem.  I've used Schuler's for 4 or 5 years and after the 
> recent discussion looked at them and found a haze after close 
> inspection.  In fact, I had to reflect a bright light off the surface 
> to see it.  Alcohol, hydrogen peroxide didn't touch it, but a very 
> light slurry of cerium oxide and 'finger tip polisher' took it right 
> off.  It probably would also have taken off any coatings had there been 
> any, so it might not be a fix for an AR coated filter.


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