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Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Well Al Tell Us How...

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Posted by Rick Crockett on February 7, 2001 03:29:14 UTC

Al you mentioned a few times that you have the equipment and do 98% reflective coatings. That being the case why don't you tell us about the equipment and the details to produce 98% coatings.

I admit I am a bit sceptical because I don't believe anyone (regardless of claims) is doing more than 92% on large mirrors and 95% on secondaries. They may have a 98% obstruction but 2% transmission does not mean 98% reflection.

98% is obtainable but requires a lot of time and effort that most coaters would not put forth for just a few mirrors.

Here's your chance to be useful to the ATM community.


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