Re: [ATM] Fringe testing Dall Kirkham secondary

[Jarvis Krumbein <jkoptic@juno.com>]

I only just picked up on this thread having missed the beginning.  Since
the desired curve for the Dall-Kirkham secondary is a spherical surface
the evenly spaced rings are good.  A small difference (Waves) in the
secondary radius from the test plate should be insignificant in the final
system.  If you've got a good sphere, readjust the spacing between
primary and secondary slightly and don't worry too much.

Jarvis Krumbein

________________________________________________________________
Juno Platinum $9.95. Juno SpeedBand $14.95.
Sign up for Juno Today at http://www.juno.com!
Look for special offers at Best Buy stores.
_______________________________________________
ATM mailing list http://www.atmlist.net/