Re: [ATM] History of moving mirrors for Schmidt Cassegrains.

[Andy Saulietis <iss@pvtnetworks.net>]

Hi Larry,


>    I don't understand how rotating the cage will derotate the field.
>Isn't the secondary pointing back through a hole in the primary ?
>

The 37" will be a newtonian, so the sec cage in effect rotates around the
field of view. I'm doing it this way because the cage will have
multiple observing ports accessed by rotating the secondary mirror,
so all the ports are derotated with a single rotator.





Andy Saulietis
ISS Enterprises
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Mayhill NM 88339


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