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Old 27-03-2007, 10:51 AM
Zuts
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Join Date: Mar 2007
Location: sydney
Posts: 1,837
Quote:
Originally Posted by iceman View Post
The 12" dob is great, you'll notice some drop off in light gathering and probably a loss in portability, grab n go etc when you move to a motor driven mount, SCT etc.

Not to mention the wide field, contrasty views offered by a newt.

I can see the desire to get a motor driven mount, but have you considered getting an EQ mount for your dob, if you want tracking? Have you considered getting an Argo Navis for your dob, which in effect gives you goto (except it's push-to)?
I was sort of asking whether i would notice much difference between the 11 and 12 SCT's.

I did consider an ago narvis but it wont track. I really want to keep something in the FOV and just watch it without having to bump the DOB.

I was considering a celestron advanced so i can get an eq6 mount (clone) and maybe use the mount for a lighter APO as well. But I dont think an eq6 driven mount would be suitable for my big dob for viewing, maybe for photos. A real stable eq mount/goto/driven for a big dob would be around 4000 dollars and that is nearly the price of the SCT after i sell my DOB?

Narrower field of view is a problem with any SCT but if i get a 40 mm widefield or a field reducer will i overcome this problem to some extent?

Can anyone help with my points above and tell me if i am really off the mark.

Thanks Paul
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