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Celestron CG-4 Mount only $199.00 at Astronomics

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#26 meteorite

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Posted 17 March 2011 - 06:55 PM

ahhh, okay. I see.

-Walter

#27 Starhawk

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Posted 17 March 2011 - 08:37 PM

GOTO has trained us to be ready for massive power demands. But non- GOTO mounts use very little power, so stop thinking about how you'll need to replace lots of batteries, because you won't.

-Rich

#28 meteorite

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Posted 18 March 2011 - 07:14 AM

Hello Everyone,

I am the OP. I ordered a pair of replacement RA and Dec knobs from http://www.focusknobs.com/ this week. I think they look great on the mount.

-Walter

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#29 N1ghtSc0p3

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Posted 18 March 2011 - 09:07 AM

Very nice addition Walter!! I picked up this mount last night w/ Astronomics' sale...can't wait to take receipt! Now debating between a used WO Zenithstar 80, or a new AT72ED... :question:

#30 Bart

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Posted 18 March 2011 - 08:35 PM

The CG-4 came today. I was able to use it for about an hour before the clouds rolled in, I have to say that I really like this little mount. Sure it's not a GoTo, but with a drive installed it'll be perfect for my ED80.

I'm a happy camper.

#31 meteorite

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Posted 19 March 2011 - 12:51 AM

Hello Bart,

I can't speak of the ZenithStar 80 because I don't own one. The only problem (a small one) I have noted with the AT72 is with my 2 inch diagonal, eyepiece and finder, the scope is heavy on the back end. The mounting foot on the scope is about as long as he saddle on the mount so there is no room to play with the Dec balance.

It doesn't affect me personally as I just tighten down on the Dec clamp a little more than I otherwise would. It may be an issue if you are attaching a dec motor drive. It may cause stress on the drive. I don't know. Anyone have an opinion on this?

I suppose you could attach the AT72 to an 8 inch dovetal plate. Has anyone done this?

This may be a good question for the Refractor forum or a new thread here.

-Walter

#32 Bart

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Posted 19 March 2011 - 07:29 AM

Walter,

I have the Orion ED80. The length of the scope, diagonal included, lends itself to being perfectly balanced. So far no problem. I should be getting the drive by this Friday. I'll let you know how it installs.

#33 meteorite

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Posted 19 March 2011 - 08:45 AM

Hello Bart,

Ahhh, that's good news. Single (RA) or dual drive? I have looked around and it appears no one except Orion is selling the single RA drive anymore. Maybe Celestron d/c the single drive?

-Walter

#34 Bart

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Posted 19 March 2011 - 08:50 AM

I sprang for the dual drive. Celestron doesn't sell a single drive.

I recently talked with an Orion sales persons. He said with all the GoTo mounts being sold, the market for single drives has all but dried up.

#35 AlienRatDog

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Posted 20 March 2011 - 04:07 PM

Ok I may buy one at this point so in a nutshell, to double check...think the Orion 100ED f/9 be ok on the mount (better than portamount)? AND does the Orion Single Drive system for the Astroview mount work on this??

#36 Happy-Idiot

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Posted 22 March 2011 - 01:23 PM

Thanks everyone, now i am $200 poorer and im still just as ugly.

BTW nice knobs Walter. I will have to look into them myself.

#37 SteveG

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Posted 22 March 2011 - 02:00 PM

Ok I may buy one at this point so in a nutshell, to double check...think the Orion 100ED f/9 be ok on the mount (better than portamount)? AND does the Orion Single Drive system for the Astroview mount work on this??


Abe

This mount would be excellent for the ED100. I'm sure you can find a single axis drive for it, and yes, an owner here posted that the Astroview drive works with this mount.

#38 Guy Noir

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Posted 22 March 2011 - 03:47 PM

Oh wow, that looks like a nice replacement for my Astroview mount ... it looks a bit like its built like the Orion SVP mount, and on the website it says its 33.5 lbs.

Can anybody comment on this? Is this mount comparable to the Orion SVP in terms of stability, max load, and vibration damping?

I would mount either a 5' MakCass or 120 mm ST refractor on it.

Thanks fo the advice,
Michael

#39 Guy Noir

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Posted 22 March 2011 - 04:11 PM

Actually, this mount looks physically much like the skywatcher EQ3-pro mount, or EQ3 synscan
http://www.skywatche...s1=3&class2=304
So I guess it would be slightly less stable that the Skywatcher EQ5 mount or the Orion SVP mounts.

Basically, my question is if this Celestron CG-4 mount would be an improvement over my Astroview mount, and if so would this be a significant improvement ...

Comments apreciated.
Michael

#40 gustavo_sanchez

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Posted 22 March 2011 - 05:10 PM

Actually, this mount looks physically much like the skywatcher EQ3-pro mount, or EQ3 synscan
http://www.skywatche...s1=3&class2=304
So I guess it would be slightly less stable that the Skywatcher EQ5 mount or the Orion SVP mounts.

Basically, my question is if this Celestron CG-4 mount would be an improvement over my Astroview mount, and if so would this be a significant improvement ...

Comments apreciated.
Michael


Well, I think the CG-4 is the same mount head as the Astroview. The tripod is a different story, as it uses the same tripod as in the EQ-G Sirius (I got both the CG-4 and the Sirius).

The SVP mount head is like the CG-5 head, but the CG-5 tripod legs are 2" instead of 1.75" (CG-4, Sirius).

#41 Starhawk

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Posted 23 March 2011 - 08:34 AM

Don't waste your time with the single axis drive. Having both axes able to move smoothly without shaking the mount is a good thing. The dual axis drive can even support autoguiding with a kit from shoestring astronomy.

Tip- use the polar alignment scope hole to run the cables through. In practice, the polar alignment scope really isn't very useful: either dead reckon and plop it down for visual, or you're doing drift alignment for photography. I took my polar scope out and do not miss it.

-Rich

#42 ScoobyDoo

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Posted 23 March 2011 - 07:29 PM

Hey all,

I'm noodling on this mount, looks to be a good deal. My load will be somewhere around a 35-60 mm Ha scope. Will this mount serve me better than a Nextstar SLT that I already have? Or is there a third choice I should consider? Thanks,

Kenny

#43 Starhawk

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Posted 23 March 2011 - 11:22 PM

For an Ha scope, this should be a slam dunk. Usually the sun isn't very hard to find.

-Rich

#44 nemo129

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Posted 24 March 2011 - 06:06 PM

Usually the sun isn't very hard to find.


Unless of course the clouds find out you bought a new piece of astronomy gear and ...well you know the story!
:cloudy:

#45 N1ghtSc0p3

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Posted 24 March 2011 - 10:54 PM

Just got back from 'first light' with the CG-4...$200 for my first 'real' GEM seemed about right, and I was definitely impressed. It's solid in my backyard, the motion is smooth, and it easily handled my new AT72ED. I did a rough polar alignment, and picked a few stars to try out. I wish it wasnt so cold out, but I had a blast for the hour or so that I got in. Only took me a few min to setup and I was observing in no time. Can't wait to get the dual drive pkg, and try some extended observing!!

#46 Bart

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Posted 24 March 2011 - 11:17 PM

First light here also.

For my ED80 it's steady as a rock. I installed the dual drive, it tracks very well. As others have said, for $200, the CG-4 is a bargain.






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