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

["Stuart Heggie" <stuart.j.heggie@sympatico.ca>]

Jeff - I have the same ST7E (using a 102mm Vixen achromat) and it is
indeed a beast. I use the CCDSoft 5.0 that came with mine and it does
subframes which totally nails the download hassle. It is great. Do you
have that software? Maybe CCDOps has subframe downloads? (i.e. click and
drag a box around the star you are going to use and it seems to figure
it out - was a bit of trial and error but it worked and substantially
speeded this up for me).

Stuart
http://www3.sympatico.ca/stuart.j.heggie/Stuart.J.Heggie/
Flesherton, Ontario, Canada

----- Original Message -----
From: "Jeff Crilly" <jlcapml@sbcglobal.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, May 05, 2004 8:53 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
>
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