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[AZ-Observing] Re: The Fourth of Mars
- From: Andrew Cooper <acooper@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Fri, 04 Jul 2003 17:30:14 -0700
Just an incomplete ATM project! But then are they ever really complete?
The lens set is by Roger Ceragioli and won a merit award at Riverside.
Almost perfect, or good enough that I don't see any flaw, textbook
perfect airy disks. 90mm clear aperture at about f/12. He sold it to
me with a tube that was adequate, but a little light to support a camera
and with a 1.25" focuser. So I built a new tube, all machined and
anodized aluminum with a Feathertouch 2" focuser. The tube and baffles
designed around a 1.4" focal plane. It rides very nicely on my tall
Losmandy mount. It just needs completion and installation of the
internal knife edge baffles and some flat black paint.
Andrew
Brian Skiff wrote:
>
> >> I need to get the baffles installed in the 90mm APO....
>
> You mean somebody is selling a purported apochromat without any
> baffles?
>
> \Brian
> --
> See message header for info on list archives or unsubscribing, and please
> send personal replies to the author, not the list.
--
Andrew Cooper
Tucson, AZ
mailto:acooper@xxxxxxxxx
http://www.whitethornhouse.com
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
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