Now OT: Re: [APML] Tele Vue & Field Flatteners for Refractors?

["John Boudreau" <jeboud@comcast.net>]

> John, you will need a special license to join the "club".  Those of us doing
> Ha work with refractors have to approve all new entries.

Jim--- you mean I've been illegal for over a year ?  *<];oO

I'm sorry <g>... I took my first CCD H-a over a year ago with my TV85. But I had to use an OAG with the ST-10 and that was all a bit much for the TV85's 2" focuser. So I put off doing more of it until I had a guide scope setup.

In October, I received my TEC140. I planned to use the TV85 as a guidescope for the TEC and vice-versa. But there's flexure somewhere--- probably in the TV85 focuser. I was using pretty solid Parallax rings for the TV.
Recently I made up an adapter and slightly modified a Lumicon GEG for use on the TEC140. Now my ST-4 can be used to guide the TEC off-axis.. My G11 mount just wouldn't be remotely up to the 20 second or so guide exposures needed by the ST-10's guide chip trying to get a peek at a star through the CS 4.5nm H-alpha filter. But this GEG setup seems to work well, so expect me to officially apply to the "H-alpha Imaging Club" soon.  <VBG>

John


John Boudreau
http://home.comcast.net/~jeboud/astro.htm

----- Original Message ----- 
From: "Jim Janusz" <jjanusz@dc.rr.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, February 04, 2004 7:06 PM
Subject: Re: [APML] Tele Vue & Field Flatteners for Refractors?


> ----- Original Message ----- 
> From: "John Boudreau" <jeboud@comcast.net>
> snip
> 
>  I'll be primarily doing H-alpha CCD imaging with a refractor this year.
> >
> > Take care,
> > John
> 
> John, you will need a special license to join the "club".  Those of us doing
> Ha work with refractors have to approve all new entries.  (With tongue
> firmly in cheek)
> 
> Welcome to the Ha crazies.......
> 
> Jim
> 
> 
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
> 


_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo