Re: [APML] STV or ST7E for guiding?...

["Jim Janusz" <jjanusz@dc.rr.com>]

Personally I would not go with the ST-V unless you need to dump the computer
requirement.  If computer control is not a problem I would recommend an
ST-237a as a guider.  It's less expensive than an ST-V, lighter than the
ST-7 and for me it guides much better than the -V.  Of course there is
nothing wrong with using the ST-7 except, as you said, the size.

Just my nickels worth.

Jim

----- Original Message ----- 
From: "Jeff Crilly" <jlcapml@sbcglobal.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, May 05, 2004 5:53 PM
Subject: [APML] STV or ST7E for guiding?...


> I've been autoguiding my film exposures w/ a ST7E + CCDOPS using
> an 80mm f11 for a guidescope.  The film imaging scope is 106 f5 (530mm
FL).
>
> My plan has been to replace the 80mm f11 w/ a short guidescope and
> continue to use the ST7E.
>
> I'm wondering if the STV + E-finder would be a better performer.
>
> The ST7E is a bit big/heavy and does require the power sucking
> laptop running ccdops.  Also, the initial autoguide calibrate is
> lengthy with the 20second full frame downloads... plus it seems
> like ccdops always picks a star near the FOV edge, resulting in the
> need to repoint the OTAs for calibration.
>
> Any comments?  Is the STV really painless?
>
> Btw, the mount is a G11.
>
> thanks
>
> jeff
>
> _______________________________________________
> 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