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Old 01-11-2011, 02:50 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Quote:
Originally Posted by Terry B View Post
I use an AO8 and find it very useful on my EQ6. I am imaging at 1800mm fl and it made guiding much better especially in dec as it compensates for the backlash very well.
I have very recently changed to a lovely tak NJP mount and I think that the benefit will be less as its trackiing is significantly better than the EQ6.
I have an AO7 for sale and it worked just as well as the AO8 but took up more back focus hence the change.
The AO7 is a mirror that moves rather than a lens. Neither seem to cause image degredation although the AO8 in theory has more potential to do so.
Thanks for that.

How is that lovely Tak NJP Mount? I miss it already!

Greg.
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