On Apr 4, 2009, at 9:43 AM, wtob...@aol.com wrote:
> .....To be more specific about the alcohol.....I was told to never
> use rubbing (Isopropyl) alcohol on any of my camera lenses to
> remove smudges from the front element by Nikon or its coating may
> be damaged...and that only a mix of distilled water and denatured
> alcohol would work.
"Denatured alcohol" is any formulation of ethanol ("grain" alcohol,
ordinarily used as an intoxicating beverage) and a denaturant which
renders it unfit for human consumption.
Gasoline is a common denaturant for grain alcohol intended for
ethanol additives for gasoline.
Nicotine is also a common denaturant.
I suspect that grain alcohol which is used in lens cleaning fluid has
a specific denaturant added which may be significantly different than
that which is added, by law, for motor fuels and vinegar production.
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