Quote:
Originally Posted by flearosie
Hi
I am a total newbie and was just wondering if there was anyway possible to take photos using a Dobsonian?
Thanks heaps
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Hi there!
One of the myths that pops up on online forums is that it is only
possible to use Dobsonians to photograph the Moon and planets.
The reality is that there are growing number of people using Dobsonians
to image deep sky objects.
For example, check out this web page of one of our customers,
Johannes Brachtendorf.
See
http://homepages.uni-tuebingen.de/jo....brachtendorf/
Be sure to follow the links to the images.
In Johannes case, he use an 18" Obsession fitted with one of
our Argo Navis computers that in turn is controlling a ServoCAT.
The ServoCAT operates servo motors on the mount to allow it to
track. The Argo Navis performs all of the tracking rate calculations
in real-time.
Since the field will rotate on an Alt/Az mount, Johannes keeps his imaging time
short and stacks multiple images in software. However, growing number of
enthusiasts are using mechanical field derotators.
So imaging on Dobs of deep sky objects is not only possible, we keep see
more and more people doing it.
In fact, in the world of professional astronomy, which is totally
centered around imaging of one sort or the other these days, the vast
majority of the world's largest scopes are on Alt/Az mounts. A Dob
is simply an example of an Alt/Az mount. These large scopes also
use tracking systems and field derotators.
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