Quote:
Originally Posted by Matty P
Is there any reason that I should not Autoguide with my Alt-Az mount?
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Hi Matty,
Despite the limitations of field rotation, there are plenty of enthusiasts out
there achieving stunning results with autoguiding on Alt/Az mounts using
short exposures and software derotation.
For example, check out these images by Johannes Brachtendorf
using an 18" Obsession, Argo Navis, ServoCAT, SBIG ST 9E and software
derotation. As Johannes says, "no platform, no derotator, no adaptive optics".
http://homepages.uni-tuebingen.de/jo...r/Galaxies.htm
http://homepages.uni-tuebingen.de/jo...er/Nebulae.htm
Also be sure to read Johannes notes on the subject -
http://homepages.uni-tuebingen.de/jo...dorf/index.htm
So you won't be breaking any new ground in giving it a try. Now and then
this topic comes up and some will say deep sky imaging is not practical
on an Alt/Az mount without a field derotator or platform. Take a look
at Johannes images and join in the chorus of "Myth busted!".
Enjoy!
Best Regards
Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place
Mount Kuring-Gai NSW 2080
Australia
Phone +61-2-9457-9049
Fax +61-2-9457-9593
sales@wildcard-innovations.com.au
http://www.wildcard-innovations.com.au