From: "Tom Stokes" 
To: "Kreig McBride" 
Cc: "atm list" 
Reply-To: "Tom Stokes" 


Hi Kreig -

Boy I would love to participate, but what do you do with an 8"
refractor objective when it's finished? Wait a minute. I've got it. You
make a convertible Dob by flipping one end for end, mounting the lens in
the mirror box, and using the diagonal to bring the image plane to a
convenient viewing position. <:)

Tom Stokes - My mirror grinding machine is at: http://home.pacbell.net/tstokes


> Tom,
>
> One thing you might consider is taking Rogers 8" achomate class at the
> Telescope Optics Workshop coming up in March.  This is going to be a one
> time offered class for making a large achromats, 8" f/15 doublets.  Roger
is
> an excellent teacher and extremely knowledable about lenses.  The three
day
> class is a great opportunity to learn lens fabrication, tool making,
theory,
> and practical hands on experience.   Consider you will be in a class of 5
> students and one excellent teacher.   I dont know of any other classes
> available in the past or future dedicated to such a project.
>
>
> www.wwu.edu/~skywise/optics.html
>
> Kreig McBride
> Bellingham, WA
>

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