[Leica] Leica glass suppliers

[hopsternew at gmail.com (Geoff Hopkinson)]

Dennis, Hoya and Schott for sure. Corning is mentioned sometimes too. I
can't vouch for that one. Actually the one that I saw and had never heard of
was Ohara which is a Japanese concern. The several cubic metres of boxes  I
saw contained pressed blanks. The Leica representative I spoke with said
that the suppliers are not secret, hence my passing on the comment of
course.



2009/9/20 Dennis <dennis at hale-pohaku.net>

> Hi Geoff,
>
> I can't without using google and that's cheating. I am sure both Hoya and
> Schott have been mentioned here on the LUG. Probably posts relating to
> meetings with Leica representatives.
>
> Cheers,
> -Dennis
>
> Geoff Hopkinson wrote:
>
>> Bonus points if you can identify another then Dennis. I had never heard of
>> them until I visted Solms.
>>
>> 2009/9/19 Dennis <dennis at hale-pohaku.net>
>>
>>
>>
>>> At one time Leica had a research lab for glass development. I don't think
>>> they made production quantity but purchased it from others. Eventually
>>> major
>>> glass manufactures had developed glasses that had excellent
>>> characteristics
>>> for optical use. Glass characteristics are pretty easy to measure so it
>>> makes sense to not manufacture it but purchase on specification. I
>>> believe
>>> the major suppliers are Hoya and Schott.
>>>
>>> It can be expensive. I seem to recall  they were paying $800  per kilo
>>> for
>>> some of the glass they use.
>>>
>>>
>>
>>
>
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-- 
Cheers
Geoff
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