RE: [ATM] F10 Achromat

[David Margrave <david.margrave@gmail.com>]

Alfredo,  


I have been in the process of building an 8" f/15 achcromat for the
last 2 years.  At the rate i have been going, I estimate I may finish
in 2007 or 2008.  i have back-tracked and am working on making an 8"
f/8 spherical mirror to test my autocollimation flats that I am trying
to make to test the color correction.

Anyhow here are the specs on this.  It is a fraunhofer doublet, and
was designed by roger ceragioli for the participants in the 2003
bellingham optics workshop.

crown bk7 glass
flint f2 glass

radii of curvature:

r1 72.99191
r2 -42.56911
r3 -43.1168
r4 -177.052

i had oslo plots a while back that i will dig up.
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