From: Milton Aupperle <milton@outcastsoft.com>
Date: July 7, 2007 11:58:22 AM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Re: autoguiding software
Hi Peter;
Unfortunately, this is a temporary setup that is torn down and re-set up each time, at least as far as the cameras and cabling go, as shown here:
http://www.outcastsoft.com/AstroImages/AstroIndex.html
and specifically
http://www.outcastsoft.com/AstroImages/Scope02.jpg
The cables are wrapped around the guide bar for the rings and when I remember to do that, then I don't have much of a flexure issue at all.
My tracking that night was really good too, using a DMK 21AF04.AS camera at 15 fps with an 80mm aperture 400 mm FL guide scope for Mag 5 to 6 stars. I averaged out to +/-0.20 pixel deviations over the 2.5 hours i was shooting for. I did have two large deviation events when a bright satellite shot across the Guiders FOV and then a second when the wind started gusting, but other than that it was smooth sailing.
TTYL..
Milton J. Aupperle
President
ASC - Aupperle Services and Contracting
Mac Software (Drivers, Components and Application) Specialist
#1005 - 815 14th Avenue. S.W.
Calgary Alberta T2R0N5
1-(403)-229-9456
www.outcastsoft.com
Proud Supporter of the "Party of Alberta"
http://www.partyofalberta.org/
On 7-Jul-07, at 11:31 AM, Peter Tattersall wrote:
Have you considered securing the cables to the scope? I used to use
double-sided tape to fix things in place but removing the tape later
was a pain. My local surplus store had some really long cable ties,
long enough to go round the scope, and they work quite well also. My
setup is more-or-less permanent though, so that also makes a difference.
