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Re[2]: [ATM] convex secondary
Hi Jonathan,
Saturday, March 12, 2005, 4:00:50 AM, you wrote:
JL> If it is the surface of the glass that you want to make
JL> right, you need to use a glass that is homogenous. Pyrex
JL> is not homogenous and has a lot of fine grain boundaries.
Yep, I'm using BK7 optical glass.
--
Best regards,
Richard
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