[Lvas] Technical Question for Newtonian/Dob

[Fred Rayworth]

Ron,
 
I've seen that tunable top, and from what I could find out, it is useless without the actual Paracorr. It adjusts for the difference in focusers to get the best image over the field, but you have to have a Paracorr lens assembly plugged into it to do any good. I may be wrong, but that's what I found out. That might also explain the huge difference in price between the two pieces.
 
Fred
 > Date: Tue, 11 Nov 2008 16:11:44 -0800> To: lvas at lvlug.org> From: Yahoo at awit.com> Subject: Re: [Lvas] Technical Question for Newtonian/Dob> > This link www.cloudynights.com/documents/paracorr.pdf talks about the > "tunable top", and explains that it is used to adjust the position of > the eyepiece. The implication is that the optics that do the work > are below it, so the device could be used without the tunable top. It > may be that the instructions were written for an older device that > did not have the easy-to-use top (you had to turn/adjust the height > of the eyepiece yourself?)> > -- David> > At 03:54 PM 11/11/2008, you wrote:> >I read a while back about Tele Vue's Paracorr and last week I was at the> >Orion website and noticed they had them (they are carrying new> >products). They advertised the Tele Vue Paracorr turnable top and it is> >not going to be available until 11/15 so I purchased it at Scope City> >for the same price. Now the background is out of the way, the question> >is; in the instructions it has a Paracorr Lens Assembly witch did not> >come with the turnable top. Is the Paracorr Lens Assembly needed or is> >that for cameras? I didn't get any straight info from the Tele Vue site> >or at the Scope City one. Even Orion's makes it sound like all you need> >is the Turnable Top. I'm kind of confused, I might be tied though, I> >just finished working 4 /12's on the over night, any help would be> >appreciated.> >Clear Sky's and keep looking up!> >Ron Krupa> >> >_______________________________________________> >Sent via the Lvas mailing list Lvas at lvlug.org> >Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas> >The LVAS discussion list is hosted courtesy of LasVegas.Net> > _______________________________________________> Sent via the Lvas mailing list Lvas at lvlug.org> Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas> The LVAS discussion list is hosted courtesy of LasVegas.Net
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