Re: Eyeglass lens coatings?

In article <IO%jf.88$B3.5487@xxxxxxxxxxxxxxxxxxxx>,
"Coater" <sales@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

> I'm in the business, and early on, I decided to coat my own glasses with
> multilayer coating. Glare reduction was fantastic. This was in the days of
> actual optical glass eyeglasses, so the coating was done at high
> temperature, and was very durable. STILL, the coating did not last long.
> Seems I am also very rough on eyeglasses. The outer surface was scratched,
> and the glare from the scratch was intense. Another thing about
> multicoatings on glasses: it is possible to wear down the coating slightly,
> and actually increase reflection from 0.5% to over 15%. This is a big
> difference, and very annoying. Coating on plastic lenses is another story.
> There are many ways to coat, but none are really all that durable. Sure they
> pass the durability tests, but in real life, some people really tend to
> abuse them. I still wear glasses, and am still in the coating business, and
> can coat my eyeglasses for free, but don't. Unless you plan on routinely
> changing your eyeglasses, it's best to leave them uncoated (IMHO).
>
> As for Magnesium Fluoride not being as durable as Multilayer coating, that's
> all dependant on the vendor. MgF2 can be every bit as durable.
>
> That, as we say in my country, is my two cents worth. Hope it helped.

Very helpful. -- thanks much.

Any opinion about the supposedly much more durable "ScotchGard" lens
coating that I was just touted into ordering on my replacement lenses
from LensCrafters?
.

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