Lewis,
I'm no officionado but wouldn't just having replacement (Chinese) lenses be enough to devalue the item regardless of the coating?
Just a thought from someone who knows nothing about it. But I'd be interested to hear the rationale behind why my suggestion doesn't hold true.
Cheers,
Quote:
Originally Posted by LewisM
I had some lenses made in China to replace some damaged originals in a 1940 vintage military scope. They did a perfect job, but despite me asking for no AR, they applied a geen MgF coating free. Nice, but NOT period correct as it needs to be.
So, how to remove the coatings? I seem to recall soaking in hydrofluoric acid or another acid will do it? I know cerium oxide errosion will do it but i fear altering the figure.
And do not suggest living with the coatings, as being a rare and valuable item (made by Zeiss/Hensoldt) it actually devalues the item considerably despite the advantages.
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