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Hey...they do..

Thanks for the respectful consideration Robert.
I am vey moved by your addition of my scopes.

The objective of the 6"f/15 is the last objective of the now famous and master optician Arthur Devany...Of Northrup fame.

I hate to point out things, when I am being so appreciative...but the smaller scope is an f/6.5..

I gave your link to several people in the S.Cal, area aerospace industry. They enjoyed it. One was my father.

Thanks Robert

Rob

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Hi Rob,
Thanks for pointing out the errors! All fixed now!

Robert