--- Mark Dapoz <md@xxxxxxxxxxxx> wrote:
> On Sat, 11 May 2002, Pete Prunskunas wrote:
>
> > Is it possible to multicoat an old lens? Say, if
> you have a single coat
> > lens, can Olympus (or someone else) multicoat the
> lens? Obviously
> > I am talking about lenses without damage to the
> glass. If it is possible,
> > is it cost prohibitive and/or a stupid idea?
>
> Yes, it's possible, there are companies that
> specialise in this type of thing.
> It is very expensive though, count on at least $50
> per element. Cemented
> elements may also have to be separated before being
> recoated. That would
> add significantly to the total cost. Usually it's
> only cost effective to do
> this on very expensive lenses, and even then it's
> usually only done on one or
> two elements.
> -mark
Recoating a lens is extremely expensive and usually is
only done to very expensive lenses that have severe
coating flaws. If I had a 250/2 Zuiko that needed it I
might do it but for a 50/1.8 or even 50/2 macro
(unless I basically got the macro for free) I would
not bother. As for multicoating single or uncoated
lenses? I don't think that's possible it would change
the characterisitics of the lens too much. Heck it
might be cheaper to try and get a company to grind you
a new element than recoat an old one
Mark Lloyd
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