[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [ATM] RC Multiple primaries and a single seconday
I am not sure what you are saying but if the secondary is eliminated then it is a Newtonian with three primaries?
Thanks,
Julio
Original Message-----
From: John Moore [mailto:jamooretx@web.com]
Sent: Thursday, September 14, 2006 11:59 PM
To: 'Julio Sanchez', atm@atmlist.net
Cc: atm@atmlist.net
Subject: Re: [ATM] RC Multiple primaries and a single seconday
Hi Julio,,
Im not goimg to try and answere,,because Im not "cassegrain" person,,
but the question is interresting!!,
so Im going to "toss-in" my"probably-wrong" 2-cents,,
just a wild-guesse,,
but the only way for that to work,,form my little knowledge of "Cass-systems",
would be for,,
Instead of using the "same-secondary",,
Why-not use the total "final-focas" from all-3-scopes, to converge at a
"Deflected-point", of the "combined focus", of all 3-scopes.
BETTER EXAMPLE;
using a "binocular-scope" to "Focas" at a "Monocular Final-focus"!!,
so no-matter how many scopes are used,, the "Final-focus" is converged at
a "Final-monocular-focal-point".
would that also "combine the 3-scopes Light-gathering power"???
[just my theory,,and I dont claim any basis on fact].
John.
> ----- Original Message -----
> From: "Julio Sanchez" <jsanchez@skipanon.com>
> To: atm@atmlist.net
> Subject: Re: [ATM] RC Multiple primaries and a single seconday
> Date: Fri, 15 Sep 2006 03:15:03 +0000
>
>
> Is such a design possible on a RC Cassegrain? For example, can you
> have three identical (approximately) primaries, with a single
> secondary in a central position to produce a single image? Will the
> light-gathering power be tripled? It seems so.
> Another brain teaser. Regards,
> Julio
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
>
--
_______________________________________________
Free Email from Web.com
Sign Up Now - http://www.Web.com/email
_______________________________________________
ATM mailing list http://www.atmlist.net/