[Leica] See the video about the M9 at Solms? (long & boring)

[dennis at hale-pohaku.net (Dennis)]

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.
>>     
>