Re: ATM Off-axis Newtonian?

[Andy Saulietis <iss@pvtnetworks.net>]

Roger C writes,

>I recently acquired a sawed of chunk of a large parabolic mirror capable of
>being turned into a 5" f/6 off-axis Newtonian mirror and was wondering if
>anyone on the list has any experience with off-axis Newts?  I don't know
>what to expect from this design, but am very curious as to how well it
>might perform.

Keep in mind that the off axis image will have a lot
of the coma associated with the original (~f3?) paraboloid.
More than an on-axis f6.



Andy Saulietis
ISS Enterprises
39 Silver Fox Trail
Mayhill NM 88339
505-687-3067 voice
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e-mail: iss@pvtnetworks.net